Summary of Unsafe Condition, Accident & Fire Reports

Date Reported Injuries Fatalities Description Loss of Containment
2024-03-18 0 0 Malfunction of boiler controls resulted in a fire. The boiler was scrapped. Yes
2024-03-12 0 0 During operation of a dry kiln, a fan blade broke off, striking a thermal fluid line and causing a loss of containment and fire. Yes
2024-03-11 0 0 While flushing a filter vessel, the product used exceeded the design temperature. This is considered an unsafe condition due to the procedure being implemented incorrectly. No
2024-03-08 0 0 During operator rounds a leak was identified from a heat recovery steam generator. The cause is believed to be from cyclic fatigue. Yes
2024-03-08 0 0 A fire was reported at a tank farm and several open atmospheric storage tanks and piping were exposed due to possible static electricity coming into contact with hydrocarbon. No
2024-03-07 0 0 During the restart of a piping system after a repair, a hydrate became dislodged and moved through the piping. This resulted in a rupture of the piping at the relief valve attachment nozzle. Yes
2024-02-27 0 0 A leak was found from an emulsion drain upstream of a header block valve. It was subsequently discovered that the valve had been frozen, and the leak was from the valve body. Inadequate heat tracing was noted as the cause. Yes
2024-02-23 0 0 The refractory on a steam generator failed causing the shell to overheat and fail causing a loss of containment. Yes
2024-02-21 0 0 Leak found at purge oil filter pressure transmitter connection. Cause was due to mechanical fatigue as the filter operates under vibration. Yes
2024-02-21 0 0 Operators responded to a hydrogen sulfide alarm. Investigation revealed that a control valve had failed and was leaking amine. This was due to vibration induced fatigue. Yes
2024-02-21 0 0 A degasifier vessel developed a leak from the inlet nozzle. The cause of the leak was internal corrosion. Yes
2024-02-21 0 0 The threaded connection of a pressure transmitter located on a purge oil filter was leaking. This is due to fatigue as the filter operates under vibration. Yes
2024-02-20 0 0 Due to a plant upset, operations closed a discharge valve on an aftercooler. This created a no water flow condition allowing tubes to freeze and rupture in the aftercooler. Yes
2024-02-20 0 0 Localized thinning found on a portion of naphtha/bitumen piping system. The cause is believed to be erosion/corrosion. Yes
2024-02-20 0 0 A condensate line on the outlet piping of a steam coil was split and leaking. This was caused by freezing. Yes
2024-02-20 0 0 A through wall crack was found on tubing of a fuel gas relief valve, which resulted in a leak. The cause of failure was due to vibration from compressor skid. Yes
2024-02-20 0 0 A leak was found from a butt weld on a tee in a high pressure boiler piping system. This was caused by stress corrosion cracking. Yes
2024-02-20 0 0 A heat exchanger was leaking from a crack on a tubesheet to shell weld. The owner believes the crack was a result of thermal cycling. Yes
2024-02-17 0 0 The end cap of a header to a thermal oil press was leaking from a pinhole. The probable cause was attributed to corrosion. Yes
2024-02-16 0 0 A suction scrubber was found to be leaking fluid. The equipment was shut down and isolated. Upon further investigation a nipple was found to have cracked circumferentially likely due to vibration associated with the compressors. Yes
2024-02-16 0 0 The owner found a pinhole leak on the steam condensate line. The owner determined that the cause was internal corrosion. Yes
2024-02-16 0 0 Unsafe condition reported after a through wall crack was identified on a free water knockout fire tube during inspection. Yes
2024-02-14 0 0 A portion of flare header piping was found to be leaking at a dead-leg due to internal corrosion. Yes
2024-02-14 0 0 A loss of containment was reported by an owner who had noted two boiler tube leaks. Tube overheating is believed to be the cause. Yes
2024-02-13 0 0 Sulphur dioxide (SO2) gas was released from a section of failed piping. The failure has been attributed to pipe wall loss due to internal corrosion. Yes
2024-02-12 0 0 A portion of a steam line ruptured downstream of an autoclave. The owner determined the root cause is a combination of wall thinning of the line and sudden overpressure of the line by the pump. Yes
2024-02-10 0 0 A nozzle weld was leaking from a compressor discharge bottle. Probable cause was determined to be fatigue from vibration. Yes
2024-02-09 0 0 Operations discovered a portion of a condensate line frozen resulting in a failed gasket and bulge in pipe. Yes
2024-02-09 0 0 A steam condenser was frozen resulting in several split tubes. The owner determined the cause to be the controls set incorrectly. Yes
2024-02-08 0 0 The gauge glass on a deaerator was found leaking. The leak was from the threaded piping connection at the top of the gauge glass that had sheared off. It is believed that this failure was the result of mechanical fatigue. Yes
2024-02-07 0 0 A leak was identified on a thermowell nozzle on a discharge bottle. Probable cause is cited as vibration. Yes
2024-02-06 1 0 A fire was reported at a compressor building due to procedure not being followed and inadequate training. No
2024-02-06 0 0 During start-up of an ice plant, the safety valve (PSV) operated as intended. Due to extreme cold temperatures, ammonia vented through a safety valve discharge and drafted into the building due to the location of the discharge. No
2024-02-06 0 0 The body of a safety valve on a coalescer vessel failed due to extreme overheating, resulting in a fire. The compressor had overheating issued in the past and was the probable cause. Yes
2024-02-06 0 0 A shell and tube heat exchanger experienced an overpressure event during a pressure test due to a miscommunication between workers conducting the test. Yes
2024-02-06 0 0 During inspection, it was discovered that two air receivers developed cracks at motor bracket weld seam. The cracks were caused by vibration service. Yes
2024-02-06 0 0 A crack at the drain nozzle attachment weld of a compressor discharge nozzle was discovered. The crack was caused by vibration from the reciprocating compressor. Yes
2024-02-02 0 0 Threaded piping on boiler gauge glass developed leak due to internal corrosion. Yes
2024-02-02 0 0 A section of condensate piping developed a pinhole leak caused by corrosion under insulation (CUI). Yes
2024-02-01 0 0 A section of a condensate header was frozen. The owner determined that lack of heat tracing and insulation to be the cause. Yes
2024-02-01 0 0 Vapour was noticed to be coming from the casing of a package boiler. Probable cause is a tube roll leak from the tube to steam drum caused by thermal cycling of the boiler. Yes
2024-02-01 0 0 Brittle failure found on a section of piping. The piping was full of water and froze due to lack of heat tracing. Yes
2024-01-31 0 0 An unsafe condition was reported after a boiler was offline and under wet layup during the cold weather and froze resulting in a leak. Cold air is believed to have entered the stack resulting freezing. Yes
2024-01-30 0 0 Operations observed multiple leaks on steam and condensate lines. The was cause identified as a lack of heat tracing and insulation resulting in freezing and splitting of the pipes. Yes
2024-01-29 0 0 While returning a compressor to service a drain valve was inadvertently left open resulting in a hydrogen release. The owner determined that their procedure was not followed. Yes
2024-01-29 0 0 A pipe spool from a treater to a water tank was found with a pin hole in the flange. The leak was caused by internal corrosion. Yes
2024-01-26 0 0 Operations found a leak from a steam condensate piping system. The owner found an elbow with a through wall hole from internal corrosion. Yes
2024-01-26 0 0 A small heating boiler froze and cracked the cast iron header. Cause is believed to be building control system software malfunction, which turned the boiler off over the weekend. Yes
2024-01-25 0 0 An air cooler leak identified. Owner believes that some tubes lost seal to header box (tube-sheet) joint. Yes
2024-01-24 0 0 A heat exchanger (gas cooler) had a tube freeze and rupture causing the unit to go down and gas to be vented. The cause is believed to be a design issue that allows the accumulation of condensate inside the cooler. Yes
2024-01-24 0 0 An inlet air preheater was identified as having a leak on the return bends. It was determined that the leak was caused by a freezing due to the equipment not being completely drained when isolated. Yes
2024-01-24 0 0 Operations found a condensate line had frozen and split due to a heat tracing malfunction. Yes
2024-01-24 0 0 Operations detected a leak on an air cooler. It was determined that the leak occurred loosening tube ends on header box due to vibration. Yes
2024-01-23 0 0 Operations found that the boiler feed water piping developed a leak at weld. Cause is believed to be a weld defect from construction. Yes
2024-01-22 0 0 Several tubes failed in the radiant section of a once through steam generator. Owner suspects manufacturing defects to be the cause. Yes
2024-01-22 0 0 During an extreme cold weather period, the heater in a building tripped resulting in a frozen water line. No
2024-01-22 0 0 The drain valve on a vessel was found to be frozen, insufficient heat tracing and insulation. Yes
2024-01-22 0 0 During boiler start up, operations identified leaks on the mud drum heating coil and connections to the mud drum. The cause is likely corrosion combined with a water hammer event. Yes
2024-01-22 0 0 During rounds the operations team identified a leaking amine from an aerial cooler. Owner determined the cause was most likely from freeze damage. Yes
2024-01-21 0 0 During operator rounds, a steam trap was found to be frozen resulting in a loss of containment. The cause was identified as malfunctioning heat tracing. Yes
2024-01-19 0 0 Power interruption causing the boilers to trip and taking the steam system off-line allowing the steam trap, area heater and bleed valve to freeze and rupture. Yes
2024-01-18 0 0 A damper actuator failure associated with the heat recovery steam generator caused the system to over pressure resulting in a release through the safety valve. The owner has indicated that process control was the probable cause. No
2024-01-18 0 0 Operations detected a leak on air cooler. A tube failure was caused by fretting from a piece of a loose instrumentation fitting. Yes
2024-01-17 0 0 An air-cooled heat exchanger froze resulting in a leak from a tube. The cause is believed to be due to lack of insulation during extreme cold weather. Yes
2024-01-17 0 0 During operator rounds a produced water line was found to be leaking from a pinhole. The cause was a result of internal corrosion. Yes
2024-01-16 0 0 A pilot operated pressure relief valve (PRV) failed in the open position because of freezing due to heat tracing failure. The discharge of the PRV overflowed from the flare stack resulting in a fire. Yes
2024-01-16 0 0 A section of steam piping was found to be frozen and leaking due to inadequate heat tracing. Yes
2024-01-15 0 0 Operations found an economizer drain valve with a pinhole leak in the body. The owner believes the cause to be corrosion/erosion due to passing fluids. Yes
2024-01-15 0 0 A section of economizer drain piping froze resulting in a loss of containment from the boiler external piping. Yes
2024-01-15 1 0 During maintenance of an air dryer unit, a worker was struck by a cartridge filter from the vacuum pump. The cause is believed to be pressurization of the cartridge filter. Yes
2024-01-12 0 0 During maintenance activities, a small fire was ignited due to a packing leak on a control valve. The leak was caused by packing damage and the hydrocarbon was ignited by static electricity. Yes
2024-01-12 0 0 A steam supply line ruptured resulting in a loss of containment. A power interruption caused the boilers to trip allowed the steam line to freeze. Yes
2024-01-11 0 0 A pinhole leak on block valve bonnet was discovered. The owner determined that the pinhole was a result of internal corrosion. Yes
2024-01-11 0 0 Heat tracing failed on hot gas regeneration piping. This resulted in freezing a section of the piping and a loss of containment. Yes
2024-01-11 0 0 An elbow on the boiler feedwater (BFW) line to a Once Through Steam Generator (OTSG) ruptured due to freezing. The owner has determined that the heat tracing on the BFW line had failed. Yes
2024-01-09 0 0 Steam Assisted Gravity Drainage (SAGD) steam boost valve developed a leak from the bonnet. Investigation by the owner determined that freezing had occurred in the valve caused the leakage. Yes
2024-01-09 0 0 A small vertical air receiver cracked where the compressor motor mount is welded to the top head. The cause was from vibration and fatigue. Yes
2024-01-09 0 0 Threaded piping nipple near a compressor failed due to vibration. Yes
2024-01-09 0 0 Owner discovered a valve with freeze damage to its bonnet. Extreme low temperatures and lack of insulation was determined to be the cause. Yes
2024-01-07 0 0 A blind connection at the end of a froth treatment line created a dead leg from the header. Lack of heat tracing resulted in freezing and a loss of containment at the flanged connection. Yes
2024-01-05 0 0 Operations found a relief valve leaking from the pilot. Probable cause is fatigue from pump vibration together with a pressure spike. Yes
2024-01-05 0 0 An economizer on a heat recovery steam generator developed a tube to header leak due to fatigue from thermal cycling/shock during startup. Yes
2024-01-04 0 0 A pilot operated pressure relief valve (PRV) failed in the open position because of freezing due to heat tracing failure. The discharge of the PRV overflowed from the flare stack resulting in a fire. No
2024-01-03 0 0 Operations discovered a failure of a steam condensate line below grade. The failure is attributed to external corrosion. Yes
2023-12-30 0 0 A ball valve failed as a result of trapped liquid freezing inside the valve while in the closed position. Yes
2023-12-28 0 0 Operations discovered a tube leak from an ethane cracking furnace. The owner has determined the failure to be the result of creep. Yes
2023-12-28 0 0 For the second time, operations discovered a tube leak from an ethane cracking furnace. The owner has determined the failure to be the result of creep. Yes
2023-12-22 0 0 A steam line was found to be frozen resulting in the bolts of a strainer failing. The cause was found to be a plugged steam trap and a closed downstream valve. Yes
2023-12-22 0 0 A steam trap failed in the closed position causing a lack of flow and freezing and subsequent split in a steam header. Yes
2023-12-22 0 0 Operations discovered a pinhole leak from a block valve. The probable cause was determined to be internal corrosion. Yes
2023-12-21 0 0 A leak was identified from the shell side of a heat exchanger. The leak was a result of internal corrosion. Yes
2023-12-21 0 0 Outlet piping from a refrigerant (propane) accumulator developed a leak from corrosion under insulation/external surface corrosion. This was caused by a small section of pipe below grade allowing liquid to collect inside the insulation. Yes
2023-12-21 0 0 A pinhole leak was identified from a water injection line due to corrosion. The cause is believed to be stagnant commodity and inappropriate material selection. Yes
2023-12-20 0 0 A safety valve discharge line to flare was found leaking. The owner believes that the leak was caused by corrosion of a fitting. Yes
2023-12-20 0 0 The amine low pressure line to flare was discovered leaking. The owner believes that the leak was caused by corrosion. Yes
2023-12-20 0 0 Field operations noticed a leak from the level gauge located on the condensate flash drum. Inspection determined that it was likely due to corrosion. Yes
2023-12-19 0 0 A leak developed around the seal on top of coalescer filter and released gas vapor into the surrounding area. An o-ring failure is the suspected cause. Yes
2023-12-18 0 0 Piping on a suction scrubber, in a compressor unit, developed a leak. The leak was on a threaded nipple and the likely cause is fatigue from the vibrations. Yes
2023-12-15 0 0 A heat recovery steam generator (HRSG) developed multiple tube leaks from the tube to header fillet welds. The cause is believed to be fatigue due to thermal cycling and/or thermal shock. Yes
2023-12-15 0 0 A leak was observed from feed water piping. The cause is believed to be an internal weld defect which propagated over time to the surface. Yes
2023-12-15 0 0 Operations found an air receiver with a crack adjacent to a structural support weld. Likely cause of failure was fatigue caused by vibration. Yes
2023-12-15 0 0 While commissioning a piping system, operations noticed a gate valve had developed a slight leak between the body and bonnet. Further investigation determined that the section of piping had been frozen. Yes
2023-12-14 1 0 A worker was injured during a pneumatic pressure test. A hose had a flow issue and the nitrogen bottle was closed and hose disconnected for inspection. When the hose was reconnected the pressure dislodged ice hitting the worker in the face. Yes
2023-12-14 0 0 During an inspection of a separator, thickness testing identified excessive internal wall thinning and a pinhole leak. The owner has determined the cause to be a dead leg with stagnant high chloride water. Yes
2023-12-14 0 0 A separator had a flange with a threaded connection that corroded from the process fluids. This developed into a leak resulting in a loss of containment. Yes
2023-12-13 0 0 A produced water injection pump Emergency Shut Down (ESD) valve developed a leak from corrosion at the threaded connection. Yes
2023-12-13 0 0 The Lower Explosive Limit (LEL) alarm sounded in a fuel gas compressor building. Operations found a broken fitting on the fuel gas line. The cause is likely from vibration/fatigue. Yes
2023-12-12 0 0 A pipe nipple failed on a fuel gas line due to vibrations attributed to the compressor. Yes
2023-12-11 0 0 An isolation valve on a compressor drain developed a leak. The cause is believed to be from freezing due to stagnant fluid. Yes
2023-12-06 0 0 A condensate cooler was found frozen resulting in a loss of containment. The owner has determined that the instrument controls were malfunctioning providing incorrect temperatures to operations. Yes
2023-12-06 0 0 During burner maintenance, an unsafe condition was reported when an oil treater firetube was found to be partially collapsed. The cause was due a lack of heat transfer due to scale/sediment deposits around the firetube. No
2023-12-06 0 0 Vibration in process equipment caused a crack to form in the heat affected zone of a nozzle weld on a suction bottle. Yes
2023-12-03 0 0 Condensate piping and a steam coil were found frozen resulting in a leak. The owner has determined that inadequate heat tracing as the cause. Yes
2023-12-02 0 0 Stagnant flow in a flare knockout line containing high chlorides caused a pinhole leak. Yes
2023-12-02 0 0 During plant shutdown and subsequent start-up, the tubeside of the Pressure Swing Adsorption (PSA) feed trim cooler, exceeded the tube-side design temperature. Probable cause is related to safe operating procedures. No
2023-12-01 0 0 Piping used to supply compressed air was contacted by a strap attached to a rail car. The car was in the process of being moved and the strap was not removed from the rail car prior to the move. The result was a break in the air line. Yes
2023-12-01 0 0 A leak from a condensate blowdown connected to a steam line was found to be leaking steam into a water filter room. The owner has determined that the line failed due to a stress fracture exacerbated by poor condensate treatment practices. Yes
2023-11-30 0 0 A leak from crack on a dual chamber orifice fitting was discovered. The probable cause is suspected to be a manufacturing defect. Yes
2023-11-30 0 0 Localized internal corrosion caused leakage from process piping. Yes
2023-11-29 0 0 An operator noticed a pinhole leak from a weld on a steam piping system. The leak was caused by corrosion at the socket weld connection. Yes
2023-11-29 0 0 An operator discovered a steam piping leak from an engineered enclosure (leak box). The leak was caused by internal corrosion. Yes
2023-11-28 0 0 Operations discovered steam piping leaking due to a four inch split. The split was caused by freezing as a result of inadequate heat tracing. Yes
2023-11-28 0 0 A pinhole leak developed on a weld (at the 6 o'clock position) resulting in a loss of process fluid. The cause was internal corrosion. Yes
2023-11-28 0 0 Natural gas compressor piping developed a leak from a crack, caused by vibration. Yes
2023-11-27 0 0 A drain pipe on a suction scrubber developed a crack and leak due to fatigue from vibration. Yes
2023-11-24 0 0 A steam coil developed leak due to cracking from thermal cycling. Yes
2023-11-22 0 0 An unsafe condition was reported after seal pots were found without overpressure protection. The owner indicates their Management of Change (MOC) process was not followed. No
2023-11-21 0 0 A coupling on a copper instrumentation line sheared off on startup resulting in a loss of containment. The owner believes the failure is a result of incorrect coupling material installed on a previous repair and a lack of piping supports. Yes
2023-11-20 0 0 A steam condensate line froze and ruptured due to the heat tracing not being activated. Yes
2023-11-20 0 0 A pinhole leak from a water injection recycle line was reported. The owner identified corrosion from stagnant flow in the piping as the cause of the leak. Yes
2023-11-19 0 0 A leak was reported from a steam coil due to external corrosion. Yes
2023-11-17 0 0 A leak was detected from an ammonia compressor. It was identified that a shaft seal was leaking intermittently when the compressor was not running. The owner believes that oil contaminants caused the seal to dry out resulting in leakage. Yes
2023-11-17 0 0 An unsafe condition was reported when overpressure protection failed and over pressurized a header. The cause was found to be a seized safety valve. No
2023-11-16 0 0 A strainer gasket failed on a high-pressure steam line resulting in a leak. Gasket blew out during normal operation and the failure is believed caused by deterioration from service. Yes
2023-11-16 0 0 During commissioning of a new condensate line, steam was introduced prior to completely draining the water. The resulting water hammer caused and damage to a strainer and a leak. Yes
2023-11-14 0 0 A section of an emulsion flow line developed a leak due to stress corrosion cracking near the pipe support. Yes
2023-11-14 0 0 An unsafe condition was reported after a negative pressure (vacuum) event occurred in a economizer. The probable cause of the incident was the circulation of acid without venting. No
2023-11-10 0 0 An unsafe condition was reported after a suspected leak was detected from a liquified argon piping system. Ice formation on the exterior of the piping created a false leak indication. Yes
2023-11-09 0 0 A leak from a condensate line elbow was discovered. The owner determined the cause to be freeze damage from due to lack of heat tracing. Yes
2023-11-09 0 0 A heat recovery steam generator developed a tube leak from the feedwater heater due to a crack on a fillet weld. The owner has determined the crack to be a result of fatigue from thermal cycling. Yes
2023-11-07 0 0 A steam trap failed closed which caused the header off the main steam supply to freeze and split. The owner has determined the cause to be inadequate insulation and heat tracing. Yes
2023-11-03 0 0 Piping on gas compression skid developed a crack near the relief valve inlet. Probable cause is vibration induced cracking. Yes
2023-11-02 0 0 An economizer drain valve developed a pinhole leak due to internal corrosion. Yes
2023-10-31 0 0 An ammonia alarm notified operations personnel of a potential leak in the machinery room for an ice arena. It was determined the ammonia leak was from a flange on one of the compressors. Yes
2023-10-29 0 0 A hydrocarbon drain valve developed a leak in the valve body from flow impingement and internal corrosion. Yes
2023-10-29 0 0 Stagnant flow in a produced waterline containing high chlorides caused a pinhole leak. Yes
2023-10-27 0 0 A piping header failed due to internal corrosion causing a leak of water and hydrogen sulfide (H2S) gas. Yes
2023-10-27 0 0 A pinhole leak from a piping system was discovered. The cause was determined to be internal corrosion. Yes
2023-10-23 0 0 A separator developed a pinhole leak on the drain piping due to internal corrosion. Yes
2023-10-20 0 0 A loss of containment was reported from a flange weld on a stainless steel braided hose assembly. The owner believes the crack is from fabrication. Yes
2023-10-20 0 0 A pinhole leak was discovered from a check valve. The owner has determined the probable cause to be internal corrosion. Yes
2023-10-20 0 0 A 6 inch circumferential crack was identified on the piping upstream of the process gas feed valve. The owner has determined the probable cause to be inherent defects during fabrication of the flange. Yes
2023-10-19 0 0 A leak was discovered on the bottom head at the outlet nozzle of a vertical test separator. The owner believes that the leak is caused by chloride stress corrosion cracking. Yes
2023-10-17 0 0 A pressure relief valve in a compressor building developed a crack resulting in a leak on the inlet threads. The cause was due to vibrations from the associated compressor. Yes
2023-10-17 0 0 A piping header developed a crack resulting in an emulsion leak. The cause is believed to be stress corrosion cracking. Yes
2023-10-17 0 0 Threaded piping on a gas compressor sheared off due to fatigue cracking caused by vibration. Yes
2023-10-16 0 0 Operations discovered a leak on the boiler feedwater piping at a Steam Assisted Gravity Drainage (SAGD) facility. The owner has determined the probable cause to be excessive pipe wall thinning due to corrosion/erosion. Yes
2023-10-13 0 0 Fretting damage was discovered on the suction piping of a rental compressor. Following the owner’s investigation, it was discovered that a section of stainless-steel tubing was rubbing against the suction piping. No
2023-10-13 0 0 An unsafe condition was reported because an engineering review of a plant, revealed that a flare knockout drum had exceeded its MDMT conditions. This was a result of not considering the flashing of ethylene liquid in the design. No
2023-10-12 0 0 A heat recovery steam generator (HRSG) developed a tube leak. The owner has determined the cause to be thermal fatigue. Yes
2023-10-11 0 0 A loss of containment was reported from a process piping system due to an isolation valve packing leak. Yes
2023-10-11 0 0 A dead-leg in an oil/water piping system developed a pinhole due to internal corrosion. Yes
2023-10-11 0 0 A leak was found in boiler blowdown piping. Probable cause is flow-accelerated corrosion. Yes
2023-10-11 0 0 An unsafe condition was reported after an operator identified that the high-pressure shutdown set point of the compressor was set higher than the suction scrubber vessel MAWP. Subsequent investigation revealed that the tag was incorrectly marked. No
2023-10-06 0 0 An oil treater firetube section deformed and cracked. The owner determined that overheating was the cause. Yes
2023-10-06 0 0 The blowdown piping from a carbon compressor was found to have been over pressured during emergency shut down (ESD) testing. The owner determined that a constriction in the piping was blocking flow. No
2023-10-05 0 0 During warm-up of reboilers, water hammer occurred in the condensate piping. The water hammer caused a failure/leak of a weld connection to the condensate header. Yes
2023-10-02 0 0 A leak from steam piping developed due to freezing. The owner has determined that a lack of heat tracing is the cause. Yes
2023-09-28 0 0 A piping elbow in a condensate line developed a leak due to internal corrosion. Yes
2023-09-27 0 0 An owner reported that a rupture disk burst causing the associated safety valve to lift releasing ethylene which resulted in a fire. The fire damaged piping and instrumentation equipment. Yes
2023-09-27 0 0 A cast iron sectional boiler overheated, resulting in a fire. It was found that the feedwater was inadequate resulting in a low water condition and the low water cutoff device failed to operate. Yes
2023-09-22 0 0 An air preheater had frozen resulting in a split tube and loss of steam/steam condensate. The owner has determined the cause to be a passing isolation valve. Yes
2023-09-21 0 0 Operations found the shell to channel joint gasket on a heat exchanger had failed resulting in a steam leak. The owner has determined the cause to be in-service deterioration of the gasket. Yes
2023-09-21 0 0 A condensate piping line failed resulting in a loss of containment. The owner has determined the failure was a result of localized wall thinning due to preferential flow in the system. Yes
2023-09-20 0 0 An elbow on blow down piping developed a leak due to corrosion/erosion from turbulent flow of steam and condensate. Yes
2023-09-19 0 0 A tube pigtail on a hydrogen reformer developed a leak. The owner believes the cause to be high temperature creep. Yes
2023-09-18 0 0 A leak from an acid pump line attributed to through wall thinning of line due to acid exposure. Yes
2023-09-18 0 0 A suction bottle was found to be leaking from the repad “tell-tale” hole. The owner believes that the leak was caused by a cracked nozzle weld due to vibration from the compressor. Yes
2023-09-16 4 0 During turnaround activities at a natural gas processing facility, a flash fire occurred, which resulted in one worker receiving minor burns. The owner believes gasoline fumes from equipment operated inside the building to be the cause. Yes
2023-09-15 0 0 A process piping system was found to be operating above its design pressure. Probable cause is procedural errors and inadequate design. No
2023-09-11 0 0 Cleaning water was left in a heat exchanger and resulted in failed tubes due to freezing. Yes
2023-09-11 0 0 A plate heat exchanger in glycol service developed a small leak. The cause is believed to be gasket deterioration due to age and service. Yes
2023-09-06 0 0 Following routine maintenance on a pump jack, a plywood base around the pump jack motor caught fire. The flames impinged on a propane tank causing the safety valve to discharge. The owner has determined the cause to be exhaust temperature. No
2023-08-31 0 0 A leak in a water tube boiler developed at a support plate to tube fillet weld. The owner has determined the cause to be fatigue. Yes
2023-08-31 0 0 A loss of containment was reported after through wall cracking was found in a steam assisted gravity drainage facility. The owner has determined the probable cause to be excess heat during operation. Yes
2023-08-28 0 0 An ammonia leak from a valve gasket. The leak prompted an evacuation of the site. Yes
2023-08-26 0 0 A fire occurred in a power generation turbine. Probable cause was a lubrication oil leak. No
2023-08-22 0 0 Gylcol plate and frame heat exchanger developed a leak due to gasket failure. Yes
2023-08-22 0 0 An elbow in process piping developed a pinhole leak due to internal corrosion. Yes
2023-08-22 0 0 A fire blanket was used to protect pressure transmitter wiring from nearby welding activity. Hydrocarbons built up under the blanket due to leaking valve. Welding sparks ignited the hydrocarbons starting a fire. Yes
2023-08-22 0 0 An unsafe condition was reported after a safety valve failed to open on a pre-test prior to servicing. Investigation revealed that the pre-tested failed due to combination of debris inside the valve and the lifting lever assembly not functioning. No
2023-08-16 0 0 An unsafe condition was reported after a nitrogen system was found to have relief valves with the set pressure higher than the system design pressure. The owner has determined that this was overlooked during the design stage. No
2023-08-14 0 0 A produced water line developed a pinhole leak releasing approximately 200 liters of fluid. The owner has determined the cause to be internal corrosion. Yes
2023-08-10 0 0 A steam pipeline was struck by the bucket of an excavator working in close proximity. Damage limited to the insulation, cladding, as well as surface markings on the pipe. No loss of containment reported. No
2023-08-08 0 0 Oil treater firetube failure at the mitre joint reported. The owner has determined the probable cause to be thermal fatigue. Yes
2023-08-04 0 0 An air receiver developed a through wall crack due to vibration induced fatigue. Yes
2023-08-03 0 0 Loss of containment reported from amine piping failure at an elbow. The owner has determined the cause to be internal corrosion. Yes
2023-08-03 0 0 Oil treater firetube failure at the mitre joint reported. The owner has determined the probable cause to be cyclic fatigue. Yes
2023-08-03 0 0 Heat exchanger tube bypassing. The probable cause of the failure cited was thermal expansion/contraction during flow and pressure variations while in operation. Yes
2023-08-01 0 0 Heat tracing failure caused freezing in condensate piping, resulting in a loss of containment. Yes
2023-08-01 0 0 Heat tracing failure caused freezing in steam and condensate lines, resulting in multiple splits/leaks. Yes
2023-07-31 0 0 A steam condensate header developed a leak due to corrosion/erosion. Yes
2023-07-28 0 0 Two plate heat exchangers were discovered to be leaking. The probable cause of the accident was determined to be weld cracking on the internal heat transfer plate pack. Yes
2023-07-27 0 0 Abnormal flow was discovered in a heat exchanger. Upon investigation the heat exchanger was found to have a leak in a tube allowing shell side process fluid into tube side. The owner has determined the cause to be under deposit corrosion inside the tube. Yes
2023-07-27 0 0 A steam header froze and split and leaking on startup. The split was a result of a deadleg and subsequent freezing. Yes
2023-07-27 0 0 A 2 inch condensate line froze due to an accumulation of liquid in a deadleg. Yes
2023-07-26 0 0 Condensate piping developed a pinhole leak from a pipe elbow. The owner believes the cause to be steam impingement erosion/corrosion. Yes
2023-07-25 0 0 An operator discovered a hole in the spool piping to a flare line. Owner has determined the probable cause to be erosion due to entrained sand in well fluid. Yes
2023-07-20 0 0 A ¾ inch threaded pipe nipple on a gas compressor developed a crack resulting in a leak. The owner has determined the cause to be vibration and fatigue. Yes
2023-07-19 0 0 During the hauling of the portable storage tank, the tank struck a powerline causing damage to a tank nozzle. Cause of incident attributed to failure to follow procedure regarding height restrictions. No
2023-07-14 0 0 A ammonia refrigeration coil developed a pinhole leak on a finned tube. The area was evacuated, equipment isolated and vented. Yes
2023-07-14 0 0 Unsafe condition reported due to a propane tank being damaged due to wildfires. No
2023-07-13 0 0 A passing line valve in a process piping system caused internal erosion of a spool, resulting in a pinhole leak. Yes
2023-07-11 0 0 Fire occurred at a wellsite. This was not caused by pressure equipment but did damage a fuel gas scrubber. Fire was believed to be ignited by a pump jack after a gas regulator failed venting gas. No
2023-07-10 0 0 An air cooled Heat exchanger developed a pin hole leak from one of the tubes. The owner believes that the leak is caused by concentration cell corrosion as a result of under-deposit corrosion. Yes
2023-07-10 0 0 A pinhole leak was found on a piping elbow. The owner has determined that the probable cause was erosion due to entrained sand & other instream solids and high flow rates through the piping. Yes
2023-07-08 0 0 A ¾ inch compression fitting in a pneumatic tubing system became loose resulting in a loss of containment. The owner has determined the cause to be inadequate supports. Yes
2023-07-07 0 0 Boiler feed water piping failed through wall due to corrosion under insulation. Yes
2023-07-04 0 0 A treater fire tube developed a crack at the mitre joint allowing fluid on the burner side resulting in a fire. Cause believed to be fatigue. Yes
2023-07-02 1 0 A deviation from operating procedure resulted in a gas leak and subsequent explosion in a separator building. Yes
2023-06-29 0 0 A treater developed a crack on a weld due to fatigue, causing a leak into the firetube. This resulted in black smoke prior to being flooded with wash water. Yes
2023-06-29 0 0 A leak was found from a section of pressure piping. Stagnant flow and possible under deposit corrosion was deemed as the probable cause. Yes
2023-06-27 0 0 A furnace explosion was reported due to a faulty gas valve. No
2023-06-22 0 0 An ammonia odor was detected from the brine expansion tank at an ice arena. It was determined that the chiller had developed a leak. Probable cause is believed to be a manufacturing defect or corrosion. Chiller removed from service to be replaced. Yes
2023-06-22 0 0 A piping system in hydrogen service developed a leak on an isolation valve. The leaked hydrogen resulted. It is believed that valve packing failure was the cause of the leak. Yes
2023-06-21 0 0 A piping spool on a centrifuge developed a leak due to erosion/corrosion. Yes
2023-06-20 0 0 A leak was discovered from a section of pressure piping. The leak is believed to have been caused by a dead leg which resulted in internal corrosion. Yes
2023-06-19 0 0 A pinhole leak was found on a flanged connection to a plug valve. Probable cause was identified as improper torquing resulting in a gasket leak. Yes
2023-06-18 0 0 A fired heater (part of a thermal liquid heating system) developed a crack on the weld of the fire tube. Probable cause is believed to be fatigue. Yes
2023-06-16 0 0 It was identified that a portion of below grade piping (2 inch steam blowdown), had developed a leak due to internal corrosion/erosion. Yes
2023-06-15 0 0 During a facility shutdown, a treater was cleaned and inspected. During this the studs and nuts were found to be excessively corroded and ultimately the wrong grade for high temperature and sour service. Yes
2023-06-15 0 0 A pinhole leak was found on a valve in a piping system. The owner has determined the most probable cause of the leak is flow assisted corrosion and cavitation due to large pressure drop across the valves. Yes
2023-06-15 0 0 A propane tank was affected by a forest fire in northern Alberta. The tank is being evaluated to ensure it is safe for continued operation. Yes
2023-06-14 0 0 A section of 1 inch steam piping developed a leak due to a 4 inch long split. The probable cause is a freezing caused by deviation from winterization procedures. Yes
2023-06-14 0 0 A pinhole leak was discovered from a reducer on a steam line. The cause is believed to be corrosion from excessive moisture in the steam (wet steam). Yes
2023-06-14 0 0 A 4 inch split was identified in a furnace tube of a hydrogen reformer. The probable cause is believed to be creep related fatigue. Yes
2023-06-14 0 0 Condensate piping was found to have a 12-14 inch long split. This is believed to be caused by preferential flow resulting in wall loss. Yes
2023-06-14 0 0 An unsafe condition was reported due to an engineered enclosure which was designed for 100 psi was found in service on a steam line designed for 650 psi. The line was isolated and all applicable components replaced. No
2023-06-13 0 0 A leak was discovered from the channel flange connection of a heat exchanger. The probable cause is improper torquing of the channel cover studs. Yes
2023-06-13 0 0 A turbine had a cooling water failure resulting in a fire. The fire was not caused by pressure equipment but did damage a small section of the steam piping. No
2023-06-13 0 0 The movement of the low pressure steam line resulted in bending of two blowdown lines. Owner believes the cause to be water hammer. No
2023-06-09 0 0 An unsafe condition was reported due to a rupture disc release from a flare knockout drum. Probable cause is believed to be back pleasure from the flare combined with excess air being drawn into the system. Yes
2023-06-08 0 0 A leak was discovered in a portion of piping going the flare line . The owner believes that the leak was caused by a corroded fitting on the line. Yes
2023-06-06 0 0 A 1 inch piping line failed due to malfunction of controls which resulted in an overpressure and subsequent loss of containment. Yes
2023-06-05 0 0 An unsafe condition was reported as a result of wildlife pushing a propane cylinder off its base supports. No loss of containment reported. No
2023-06-04 0 0 While refilling a boiler after a shutdown, showed signs of lower tube leaks into the furnace area. Probable cause is likely erosion/corrosion. Yes
2023-06-04 0 0 An unsafe condition was reported after a temporary boiler was installed and upon startup, it was discovered that the safety valve was arbitrarily releasing. It was determine that the boiler was oversized for the application. No
2023-06-03 0 0 A 4 inch globe valve developed a pin hole leak due to erosion/corrosion from service. Yes
2023-05-31 0 0 During start up, a ¾ inch steam line failed. Probable cause is a combination of external corrosion and inadequate room (restriction) during thermal expansion. Yes
2023-05-31 0 0 An unsafe condition was reported due excessive wall thinning on the internal shell surface of vessel. The owner has determined that a sparge line located inside the vessel was directed toward the shell wall resulting in erosion. No
2023-05-31 0 0 A condensate line experienced a freeze event due to a dead leg and inadequate freeze protection. Yes
2023-05-30 0 0 Below grade condensate piping developed a leak. The probable cause is believed to be a combination of external and internal corrosion. Yes
2023-05-29 0 0 A shell and tube heat exchanger developed a leak (water) on the bottom of the shell. The cause is believed to be fretting from internals combined with accelerated corrosion at that location. Yes
2023-05-29 0 0 A Pinhole leak was found on an elbow in a piping line. Probable cause was attributed to thinning due to erosion/corrosion. Yes
2023-05-23 0 0 During startup a diluted bitumen line experienced a water hammer event, which caused the line to jump off its supports. This resulted in bending of the drain piping and caused a valve bonnet gasket failure and subsequent leak. Yes
2023-05-22 0 0 A ½ inch section of pipe failed due to vibration induced fatigue causing a gas release, resulting in a fire in a natural gas compressor building. Other equipment, vessels and piping are being assessed for extent of damage. Yes
2023-05-20 0 0 An air-cooled heat exchanger developed tube leaks during start up. The cause is believed to be freeze damage during the recent outage. Yes
2023-05-19 0 0 A once through steam generator had several tubes leaking from mechanical damage resulting in a loss of containment. Yes
2023-05-18 0 0 Three air cooled heat exchangers were exposed to a fire. Owner believes the cause to be a tube failure which released hydrocarbon gas which ignited. Yes
2023-05-18 0 0 An unsafe condition was reported when several welded joints on a once through steam generator (OTSG) were found to be of the incorrect chemical composition. No
2023-05-17 0 0 A leak from a cracked tube in a power boiler was discovered. Probable cause of the tube failure/crack was thermal stress caused by uneven heating and expansion between the firebox and economizer. Yes
2023-05-16 0 0 Steam/condensate piping and coils experienced a freezing event causing a leak. These lines had not been designed or installed in a way to prevent freezing due to cold ambient temperatures. Yes
2023-05-11 0 0 A gate valve (NPS 6) in glycol service developed a leak due to failure of the bonnet seal. Yes
2023-05-11 0 0 An air cooled heat exchanger (propane service) developed a tube leak that is believed to be from corrosion under deposits. Yes
2023-05-10 0 0 Cryogenic plate heat exchanger nozzle developed a crack resulting in a loss of containment following an emergency shutdown and restart. It was determined that the failure mechanism was liquid metal embrittlement. Yes
2023-05-09 0 0 A leak in a power boiler firebox resulted in a loss of containment. Owner has indicated the probable cause to be stress assisted corrosion. Yes
2023-05-09 0 0 A piping elbow downstream of a suction scrubber developed a gas leak, caused by vibrations resulting in fatigue and ultimately cracking. Yes
2023-05-05 0 0 A high efficiency hot water heating boiler developed a tube leak. Probable cause is believed to be cracking from fatigue Yes
2023-05-05 0 0 Burner misalignment on an oil treater firetube resulted in a localized hotspot causing an internal leak. Yes
2023-05-04 4 0 An employee manipulated a valve at an ammonia loading station resulted in a release of ammonia. This incident was not caused by a failure of pressure equipment; rather, misoperation of a valve within an ammonia loading system. No
2023-05-04 0 0 A pinhole leak found from a condensate line. The cause of the loss of containment is erosion and corrosion of a carbon steel elbow. Yes
2023-05-02 0 0 A leak was detected after a piping system start-up. Probable cause of the leak is corrosion under insulation. Yes
2023-05-02 0 0 Leak from a frame plate heat exchanger was attributed to the incorrect torquing of the bolts. Yes
2023-05-02 0 0 A hot water heating boiler developed a tube leak due to a lack of water treatment. Yes
2023-04-30 0 0 An 8 inch rubber expansion joint, in boiler feed water service, developed a leak due to fatigue. Yes
2023-04-28 0 0 Steam piping developed a leak at a socket welded tee connection. The cause is believed to be from a combination of both internal and external corrosion. Yes
2023-04-27 0 0 A leak on a steam header was discovered. The leak was determined to have been caused by a previous weld repair. Yes
2023-04-26 0 0 A steam condensate line developed a pinhole leak, from a 2 inch elbow, due to internal corrosion. Yes
2023-04-26 0 0 Boiler blowdown piping developed wall thinning and ultimately a leak, caused by internal corrosion and high velocity erosion. Yes
2023-04-25 0 0 Oil treater firetube collapsed due to overheating as a result of excessive scale buildup on the firetube surface. Yes
2023-04-25 0 0 A 1 inch socket welded pipe nipple, on the discharge side of a pump, developed a crack due to the pump vibration. Yes
2023-04-24 0 0 A heat recovery steam generator developed a tube leak due to corrosion. The tube was located on the preheater and was exposed to external corrosion from the flue gas moisture Yes
2023-04-17 0 0 A section of piping was isolated during the winter, but due to passing valves, condensate filled the pipe and had a freezing event causing the pipe to split open. Yes
2023-04-17 1 0 A person received burns from hot sulphur that leaked while unloading a truck. The leak developed from the truck/loading hose coupling. Yes
2023-04-17 0 0 A heat exchanger experienced elevated temperatures above the maximum allowable due to a power supply issue that affected the pumps and cooling fans. No
2023-04-17 0 0 An oil treater firetube developed an internal leak resulting in smoke/fire contained within the firetube and stack. Excessive scale build up preventing heat transfer causing the mitre section to overheat and fail at a weld. Yes
2023-04-15 0 0 Horizontal heat exchanger was found to have a leak at a weld. The owner believes the leak was caused by cracking due to the joint design. Yes
2023-04-10 0 0 A fire was reported inside an oil treater building. The fire was not caused by a loss of containment. No
2023-04-10 0 0 A pinhole leak was found on gas boot of oil treater due to internal corrosion. Yes
2023-04-07 0 0 Steam/condensate drain piping developed a pinhole leak due to erosion/corrosion caused from passing valves and piping orientation. Yes
2023-04-05 0 0 Condensate piping (6 inch) developed a leak near a reducer due to turbulence and erosion/corrosion. Yes
2023-04-05 0 0 A 4 inch gate valve on an emulsion piping system developed a leak due to a freezing event. Lack of insulation was determined to be the cause. Yes
2023-04-04 1 0 A worker was burned by hot water while conducting routine pump maintenance. The owner has determined that inadequate procedures led this incident. Yes
2023-04-04 0 0 Leaking tubes noticed on air cooled heat exchanger. The cause has been attributed to cold and hot cycles in the weather causing leaks at the rolled tube ends. Yes
2023-04-02 0 0 A 1 inch valve (located near steam trap) developed a pinhole leak due to corrosion caused by steam and condensate. Yes
2023-03-30 0 0 A 1 inch threaded pipe nipple, in water service downstream of a separator, developed a pinhole leak due to corrosion. Yes
2023-03-30 0 0 A mechanically assembled air piping system had multiple locations fail, resulting in releases and ultimately a minor injury to a workers arm. Probable causes may include inadequate training, installation, and testing of the piping components. Yes
2023-03-30 0 0 Mechanically assembled compressed air piping system had a failure/release due to incorrect installation/construction. Yes
2023-03-29 0 0 A condensate drum had a leak from a nozzle repad weep hole. Probable cause of the loss of containment was determined to be mechanical fatigue of nozzle caused by premature flashing of condensate prior to entering vessel. Yes
2023-03-29 0 0 Steam leak on piping elbow. The probable cause of the loss of containment is erosion due to entrained water droplets impinging on the internal pipe surface. Yes
2023-03-28 0 0 Treater firetube developed a pinhole leak due to corrosion on the product side. The leak resulted in a uncontrolled fire within the firetube, which was quickly extinguished before causing further damage. Yes
2023-03-28 0 0 A safety valve at a chemical unloading station was not functioning correctly and was relieving below set pressure. Upon observation, it appeared that the safety valve had signs of physical damage. No
2023-03-24 0 0 Steam coil developed a leak on tube to header connection due to fatigue. Yes
2023-03-23 0 0 Failed tubes in an air cooled heat exchanger resulted in a loss of containment. The Owner believes the probable cause to be freeze damage. Yes
2023-03-23 0 0 Pinhole leak discovered on a water filter pot. Probable cause is noted as the corrosive produced water. Yes
2023-03-23 0 0 Amine reboiler developed a shell leak due to internal corrosion caused by oxygen and amine degradation. Yes
2023-03-21 0 0 A leak was found from a pinhole in emulsion piping due to internal erosion. Yes
2023-03-20 0 0 Produced water piping developed a leak due to microbiological corrosion. Yes
2023-03-20 0 0 A crack was discovered on the relief valve inlet piping due to vibration. Yes
2023-03-20 0 0 A freeze plug was reported to have formed in process piping resulting in an unsafe condition report. The owner has determined the heat tracing was inadequate. No
2023-03-20 0 0 A pinhole leak in a section of discharge piping downstream of a vapor recovery was discovered. The pinhole was a result of internal corrosion. Yes
2023-03-17 0 0 A section of hydrogen piping developed a leak as a result of loose pipe supports wearing through the pipe. Yes
2023-03-16 0 0 Corrosion under insulation (CUI) is believed to be the cause of a leak from steam piping. Yes
2023-03-16 0 0 Loss of containment between the tube sheet and tubes of a vapour condenser. Owner believes the probable cause to be corrosion/mechanical degradation of the tube. Yes
2023-03-15 0 0 An air cooled heat exchanger developed a tube leak as a result of freezing. The owner has determined inadequate winterization procedures to be the cause. Yes
2023-03-14 0 0 A leak developed from a portion of a 16 inch steam condensate piping line due to internal erosion/corrosion on a reducer fitting Yes
2023-03-13 0 0 A leak on the drain nozzle of the carbon dioxide flash tank was reported. The probable cause of the loss of containment is erosion corrosion. Yes
2023-03-11 0 0 A heat tracing breaker tripped resulting in the freezing of a portion of a 10 inch hydrocarbon drain system piping. No loss of containment reported. No
2023-03-11 0 0 A gas cooler experienced gas leak as a result of a the tubes. The owner believes that the tube was not adequately rolled. Yes
2023-03-10 0 0 A vertical separator developed a leak at the boot head due to internal corrosion. The owner believes the corrosion is a result of microbiologically influenced corrosion (MIC). Yes
2023-03-10 0 0 A pinhole leak in a 2 inch utility air line was discovered. Probable cause is general corrosion/pitting. Yes
2023-03-09 0 0 A section of drain piping leaked due to freezing as a result of failed heat tracing. Yes
2023-03-08 0 0 A pressure vessel (separator) developed internal pitting due to under-deposit corrosion. No
2023-03-08 0 0 Process steam piping developed a leak from an isolation valve bonnet caused due to freezing. The owner believes the valve had been passing fluid and a lack of insulation to be the cause. Yes
2023-03-07 0 0 A heat exchanger developed a crack on at non-pressure retaining attachment weld and propagated into the pressure boundary. The Owner believes the probable cause to be service related corrosion which initiated the crack. No
2023-03-07 0 0 A piping elbow developed a leak due to internal corrosion. Yes
2023-03-07 0 0 Freezing caused a section of steam piping to split due to malfunctioning heat tracing. Yes
2023-03-06 0 0 A fire was discovered at a tube to header weld of a furnace. The owner believes the cause to be poor original fabrication creating a high stress concentration at this location, and potential thermal fatigue. Yes
2023-03-05 0 0 A 4 inch globe valve developed a pinhole leak in the valve body due to steam erosion/corrosion. Yes
2023-03-03 0 0 Waste heat boiler developed a leak into the furnace. The leak was a result of tube seal welds cracking from corrosion and extended time in service. Yes
2023-03-03 0 0 A heat exchanger developed a tube leak due to freezing as a result of its heater tripping off while the exchanger was out of service. Yes
2023-03-01 0 0 A heat exchanger developed several tube to tube sheet leaks due to freezing. The owner has determined that residual fluid not drained adequately resulted in the freezing. Yes
2023-03-01 0 0 An unsafe condition was reported as a result of excessive pitting discovered in a separator during an inspection. The separator has been removed from service. No
2023-03-01 0 0 An unsafe condition was reported due to operations staff shortages at n industrial site. The owner will safely take the facility offline. No
2023-03-01 0 0 Operations discovered unintentional gas venting from the top of an aerial cooler due to freezing. Yes
2023-02-28 0 0 A demineralized water piping section ruptured due to freezing. The owner determined that the heat tracing was not activated. Yes
2023-02-28 0 0 A chemical injection line was damaged due to freezing resulting in an unsafe condition report. No loss of containment reported and the owner has confirmed that the heat tracing was inadequate. Yes
2023-02-28 0 0 A piping system developed a leak from the steam trap due to freezing. The owner has determined that the insulation and heat tracing on that portion of the piping system was inadequate. Yes
2023-02-27 0 0 A steam coil developed crack on a fillet weld resulting in a leak due to poor design. Yes
2023-02-24 0 0 Start-up steam piping froze and ruptured, resulting in a loss of containment. Owner believes the probable cause of the freezing was the single block valve left open on the blinded line creating a dead leg. Yes
2023-02-23 0 0 A valve developed a pin hole leak due to steam erosion/corrosion. Yes
2023-02-22 0 0 A leak from the lower panel connected to an amine reboiler inlet was discovered. The owner believes that the leak was caused by cracking on the plate pack resulting from temperature fluctuations. Yes
2023-02-21 0 0 A hydrocarbon drain line was found to be leaking fluid. The Owner believes the leak to be caused by a combination of corrosion and erosion. Yes
2023-02-20 0 0 138. A 10 inch gate valve, in an amine system, developed a pinhole leak in the valve body due to internal corrosion. Yes
2023-02-19 0 0 An air cooled heat exchanger had a pressure excursion causing a baffle plate to become damaged, resulting in a loss of containment. No
2023-02-17 0 0 Condensate piping ruptured at an elbow due to the combination of internal corrosion and water hammer. Yes
2023-02-15 0 0 A temperature excursion on an air receiver resulted in smoke and overheated piping. The Owner believes the probable cause to be leaking valves allowing lubricant into the vessel. No
2023-02-13 0 0 A glycol leak was discovered from heat tracing installed on flare piping. Pinhole leaks were discovered on the heat tracing. Owner believes the probable cause to be corrosion under insulation (CUI). Yes
2023-02-13 0 0 Boiler feedwater piping developed a leak due to flow accelerated corrosion. Yes
2023-02-09 0 0 An oil treater developed a pinhole leak from the firetube as a result of solids build up and under deposit corrosion. Yes
2023-02-08 0 0 Boiler blowdown piping developed a leak due to erosion/corrosion. Yes
2023-02-07 0 0 A crack formed on the weld connecting a flange to a suction bottle. The owner believes the probable cause to be due to vibration. Yes
2023-02-07 0 0 An unsafe condition was reported when an economizer section of a boiler was operating without a pressure relief device installed. Lack of formal procedures for start-up was cited as the probable cause. No
2023-02-04 0 0 Steam/bitumen piping elbow developed a leak due to internal corrosion/erosion. Yes
2023-02-03 0 0 A steam trap failed releasing steam. The owner suspects the cap on the trap was possibly faulty or eroded. Yes
2023-02-02 0 0 A small crack was discovered on the side of pressure vessel. The owner believes the cause of the the crack to be a stress fracture. Yes
2023-02-02 0 0 Operations discovers a leak from an aerial cooler tube. Probable cause was identified as inadequate installation of the tube (under-rolled on tube end). Yes
2023-01-31 0 0 Multiple leaks discovered from several pressure piping systems. The owner has attributed the leaks to corrosion. Yes
2023-01-31 0 0 Air cooled heat exchanger developed tube leaks as a result of freezing. Yes
2023-01-27 0 0 Multiple lean amine coolers developed pinhole leaks in tubes due to internal corrosion. Yes
2023-01-27 0 0 A condensate leak was discovered by operations. The probable cause was cited as erosion caused by impingement on the elbows. Yes
2023-01-27 0 0 A watertube boiler developed a tube leak due to fatigue at the soot blower attachment welds. Yes
2023-01-26 0 0 A pinhole leak was found from the channel head discharge nozzle of a vent condenser. Owner believes the probable cause to be internal corrosion. Yes
2023-01-25 0 0 Globe valve in steam service developed a pinhole leak in valve body due to internal corrosion. Yes
2023-01-25 0 0 123. A process piping spool was found to have failed due to internal corrosion. The owner believes the cause to be maintenance related as the line was not properly drained when not in use for extended periods. Yes
2023-01-24 0 0 A watertube boiler developed tube leaks due to corrosion/erosion. Yes
2023-01-24 0 0 An operator discovered a pinhole leak from a section of process piping. The owner believes the probable cause to be internal corrosion. Yes
2023-01-24 0 0 Internal corrosion caused a piping spool ending in a deadleg to fail. The Owner believes the probable cause to be due to the deposits in the deadleg. Yes
2023-01-23 0 0 A leak was discovered from steam piping. The owner believes the cause to be corrosion under insulation (CUI). Yes
2023-01-20 0 0 Condensate piping froze and split due to heat tracing malfunction. Yes
2023-01-20 0 0 Reboiler fire tube developed a crack in the miter bend welds that resulted in an internal oil fire. Yes
2023-01-19 0 0 A loss of containment from process piping was reported. The leak originated from a crack on a threaded nipple on the drain piping, which the owner believes was caused by repeated stress on the nipple from personnel stepping on the piping. Yes
2023-01-18 0 0 Economizer developed a tube leak due to freezing. Yes
2023-01-18 0 0 An oil treater developed several through wall cracks on the welds of a firetube due to thermal fatigue. Yes
2023-01-17 0 0 A leak was discovered from the drain on a test separator due to a leaking plug. Yes
2023-01-17 0 0 An unintentional fire was reported in a direct fired heater as a result of a leak from the tube bundle. The owner believes the leak was caused by localized overheating of the bundle resulting in a through wall defect. Yes
2023-01-17 0 0 A leak from the drain line of a steam turbine was reported. The leak was a result of a crack due to freezing. The freezing was caused by the failure of heat tracing. Yes
2023-01-17 0 0 Preheater section of boiler developed a tube leak due to external corrosion. Yes
2023-01-17 0 0 An unsafe condition was reported after the discovery of corrosion under insulation on a two inch sweet gas piping system. No
2023-01-17 0 0 An elbow in a process piping system developed a leak. The Owner believes the probable cause of failure to be internal sand erosion. Yes
2023-01-16 0 0 A leak was discovered from a medium consistency heater. The leak was a result of the safety valve inlet cracking and breaking off in the threaded area. The owner believes the cause to be excessive vibration during service. Yes
2023-01-16 0 0 A fresh water heater shell was overheated due to a fire. The owner believes the fire was a result of an electrical issue in the process building. Yes
2023-01-16 0 0 A through wall Crack was found in the circumferential weld between the channel and shell of a heat exchanger. The owner suspects the most likely cause is a manufacturing defect. Yes
2023-01-16 0 0 An unsafe condition was reported due to the discovery of a frozen one inch steam line. The freezing was a result of failed heat tracing. No
2023-01-16 0 0 A leak was discovered in a steam generator due to corrosion. Yes
2023-01-13 0 0 A Section of 16 inch above-ground steam piping was found ruptured due to freezing. Owner believes probable cause to be the presence of residual water as a result of not draining the line adequately. Yes
2023-01-12 0 0 Air-cooled heat exchanger developed a tube leak due to internal corrosion. Yes
2023-01-12 0 0 A leak was discovered from a rolled tube end on a lean amine cooler. The owner believes the leak is a result of thermal cycling. Yes
2023-01-12 0 0 During maintenance, a flange was unbolted resulting in loss of containment of hydrocarbon and a subsequent fire. Yes
2023-01-12 0 0 Air-cooled heat exchanger leaked gas on initial start up, this is believed to be due to freeze damage. The leaking gas resulting in a fire. Yes
2023-01-12 0 0 A process upset caused a plate and frame heat exchanger to have a pressure excursion resulting in a loss of containment. Yes
2023-01-11 0 0 A Leak on a heating boiler was reported. The leak was caused by cracking due to overheating. The boiler overheated as a result of by-passing the low water cut-off device. Yes
2023-01-10 0 0 An unsafe condition was reported due to the discovery of safety valve discharge piping not being installed in a manner to discharge into a safe location. No
2023-01-09 0 0 Sour gas piping the developed a leak due to corrosion. Yes
2023-01-09 0 0 A leak was discovered from a pressure piping system piping and it was determined internal erosion/corrosion was the cause. Yes
2023-01-09 0 0 A pinhole resulted in a leak on pressure piping. Internal corrosion is the suspected cause of the leak. Yes
2023-01-08 0 0 A fire was discovered between a coker feed furnace and coke drum line. The Owner believes the probable cause to be spillage of a combustible substance used on valves to prevent coke build-up. Yes
2023-01-06 0 0 Emulsion piping developed a leak due to a pinhole in an elbow. Yes
2023-01-05 0 0 A tube was found to be ruptured on an aerial cooler due to hydrate formation and freezing. Yes
2023-01-05 0 0 A socket weld was found to be cracked and leaking on a steam coil. Yes
2023-01-04 0 0 A crack in firetube of a oil treater discovered. Owner believes the cause to be thermal fatigue due to temperature swings causing cyclic loading. Yes
2023-01-03 0 0 During maintenance activities, the tube side of a heat exchanger was isolated from the safety relief device, causing pressure to increase eventually resulting in a failure. Yes
2023-01-03 0 0 Piping of incorrect thickness was installed and resulted in a loss of containment. Yes
2023-01-03 0 0 Level column piping developed a leak due to corrosion caused by lack of blowdown resulting in a dead leg. Yes
2023-01-03 0 0 Pump discharge piping developed a leak due to external corrosion under insulation. Yes
2023-01-02 0 0 89. Low pressure feed water heater of a Heat Recovery Steam Generator (HRSG) developed a crack on the tube to header fillet weld. Owner has determined the cause to be thermal fatigue. Yes
2022-12-30 0 0 An emulsion line failed due to flow induced erosion. Yes
2022-12-29 0 0 A flanged connection to an air cooled heat exchanger leaked resulting in a fire. Yes
2022-12-29 0 0 Leak found from pump suction piping. The Owner believes the cause to be microbiological influenced corrosion (MIC). Yes
2022-12-29 0 0 Steam condensate line failed due to internal erosion/corrosion from service. Yes
2022-12-28 0 0 A leak was discovered from a air cooled heat exchanger as a result of freeze damage. Yes
2022-12-28 0 0 Unsafe condition reported due to the discovery of a frozen steam trap on a low pressure steam condensate line. No loss of containment. No
2022-12-21 0 0 Operations discovered a leak from a skid flare line. The owner determined the leak was caused by a through wall crack due to a broken support bracket resulting in higher stresses in the piping. Yes
2022-12-19 0 0 Steam piping failed due to low ambient temperatures which resulted in freezing. Yes
2022-12-17 0 0 A compressor station fire reported as a result of lubrication oil leak. Yes
2022-12-17 0 0 A failed portion low pressure piping resulted in a loss of containment due to freezing. The owner has determined freezing was a result of an accumulation of condensate at a deadleg and valves inadvertently closed preventing flow. Yes
2022-12-15 0 0 Heat tracing failure resulted in a portion of 6 inch process piping and a gate valve failing due to freeze damage. Yes
2022-12-12 0 0 An unsafe condition was reported due to freezing piping resulting from lack of flow at a deadleg. No loss of containment. No
2022-12-12 0 0 Firetube in a thermal liquid heating system developed a through wall crack due to thermal fatigue. Yes
2022-12-12 0 0 An unsafe condition was reported due to the discovery of a frozen portion of 2 inch pressure piping. No loss of containment resulted and the owner has determined the cause to be lack of heat tracing and stagnant flow at a deadleg. No
2022-12-12 0 0 An unsafe condition was reported due to freezing of drain piping. The owner believes that steam condensate was passing into the drains allowing a buildup of ice. No loss of containment reported. No
2022-12-09 0 0 A pinhole leak in a filter pot resulted in a loss of containment. The owner believes the cause to be internal corrosion. Yes
2022-12-09 0 0 Operations discovered a leak was detected on a ¾ inch threaded nipple attached to an inlet filter separator. While removing the nipple, it cracked and was replaced. Yes
2022-12-09 0 0 Leak from flare knock out (FKO) bypass piping. Leak was a result of corrosion. Yes
2022-12-08 0 0 Free water knock out bypass piping developed a pinhole leak due to internal corrosion. Yes
2022-12-08 0 0 Leaking pipe discovered due to a pinhole. Owner believes the cause to be corrosion under insulation. Yes
2022-12-06 0 0 A fire was reported and the owner has determined that frozen tubes in a heat exchanger releasing hydrocarbon coming into contact with an ignition source. The Owner believes the probable cause to be passing isolation valves. Yes
2022-12-01 0 0 Heating boiler (tubesheet to tube) welds found to be cracked resulting in glycol leak. The owner suspects the cracks were caused by thermal fatigue. Yes
2022-11-29 0 0 An unsafe condition was reported due to an air receiver being identified as operating below minimum allowable thickness. No
2022-11-27 0 0 An elbow on a process piping system failed resulting is a loss of containment. The Owner believes the probable cause to be corrosion. Yes
2022-11-24 0 0 A natural gas line failed resulting in a loss of containment. The owner has determined that a process upset as the cause. Yes
2022-11-22 0 0 An unsafe condition was reported due to an air receiver being identified as operating below minimum allowable thickness. No
2022-11-15 0 0 An acid gas leak was reported from a threaded connection on a vent of a process piping system. Yes
2022-11-14 0 0 A piping line experienced a loss of containment due to freezing. The owner identified some malfunctioning heat tracing to be the probable cause. Yes
2022-11-14 0 0 A pressure piping section experienced a loss of containment due to freezing. The owner identified some malfunctioning heat tracing to be the probable cause. Yes
2022-11-14 0 0 Failure of heat tracing caused freezing of process fluid damaging a check valve, resulting in a loss of containment. Yes
2022-11-11 0 0 Four heat exchangers were found to be damaged due to freezing. Owner has indicated that the probable cause was due to inadequate draining of the fluid during maintenance. Yes
2022-11-11 0 0 An inlet slurry line experienced a loss of containment. The owner believes the cause for this failure to be flow induced erosion during service. Yes
2022-11-08 0 0 With an infrared camera, gas was found leaking from the 3rd stage suction bottle on a compressor. Upon visual examination, a crack was detected at the toe of a re-pad fillet weld on an outlet nozzle as a result of excessive vibration during service. Yes
2022-11-04 0 0 A leak from a power boiler tube was discovered. The owner believes the probable cause to be localized overheating. Yes
2022-11-03 0 0 A loss of containment was reported from a brazed aluminum heat exchanger due to thermal stress induced at start-up from a planned shutdown. The Owner believes the probable cause to be inherent to the design of the heat exchanger. Yes
2022-11-02 0 0 A loss of containment was reported when a skid steer backed into the drain piping connected to the bottom of a propane feed filter vessel. The owner attributes this to human error and inadequate procedure. Yes
2022-11-01 0 0 Loss of containment reported from the threading of an instrument flange. The owner believes the probable cause to be inadequate support for the instrument on piping and vibration during service. Yes
2022-11-01 0 0 During maintenance activities, piping was believed to have been isolated and de-pressurized, when opened, a worker was sprayed with hot amine. The worker was not injured. The owner has determined that inadequate procedures resulted in the incident. No
2022-10-30 0 0 Deaerator developed a leak on the condensate inlet nozzle due to a through wall crack as a result of water hammer induced fatigue. Yes
2022-10-27 0 0 An operator discovered a pinhole leak from a nozzle weld on a hydro-treater vessel. The Owner believes the probable cause of the incident to be localized corrosion resulting in a pinhole at the toe of the nozzle weld to flange. Yes
2022-10-24 0 0 A pin hole leak was discovered in a water injection line filter purge spool line. The owner believes it to be caused by localized corrosion due to stagnant liquid. Yes
2022-10-22 0 0 A leak was discovered from a weld at a nozzle of a pressure vessel. The Owner believes the cause to be stress corrosion cracking. Yes
2022-10-18 0 0 An unsafe condition was reported due to deformation of a power boiler feedwater line to a de-superheater due to contraction during cooling. The deformation was caused by scaffolding which restricted movement of the piping. No
2022-10-18 0 0 Steam condensate piping developed a pinhole leak due to internal corrosion. Yes
2022-10-13 0 0 Crack noted on a shell-to-nozzle weld of a pressure vessel. The owner has indicated that the probable cause may be attributed to excessive vibration. Yes
2022-10-12 0 0 The caustic feed line to hot lime softener developed a leak. Owner suspects cause of the leak to be corrosion under insulation. Yes
2022-10-08 0 0 Fire reported at the outlet-header of a reformer furnace transfer line. The unit was safely shut down without incident. The cause of the fire was determined to be a through wall crack on a weld as a result of creep-fatigue. Yes
2022-10-06 0 0 Operators discovered flames emanating outside the burner of a utility heater furnace. The owner determined that a blocked orifice in the burner to be the cause. No
2022-10-06 0 0 A fire resulted due to an unintentional release of bitumen from a heater pump. The owner has determined the bitumen leaked from the pump casing drain line due to erosion. Yes
2022-10-05 0 0 Unsafe condition reported when an arena refrigeration plant that was shutdown over the summer developed a faint ammonia smell. Service company contacted to ensure ammonia system is leak tight. Yes
2022-10-04 0 0 A pinhole leak found from a drain line from a vessel. The probable cause of this incident is a holiday in the coating previously applied during a repair, leading to corrosion of the weld metal. Yes
2022-10-04 0 0 A fire at an apartment building resulted in boiler damage. The boiler was damaged beyond repair and will be replaced. Owner believes the probable cause to be electrical in nature. Yes
2022-10-04 0 0 A piping spool located at a well entering a test satellite building failed due to internal corrosion. Yes
2022-10-02 0 0 A leak was discovered from a valve in a process facility. The Owner has determined that the probable cause was inadequate torqueing of bonnet bolting. Yes
2022-10-01 0 0 A fire was reported while conducting routine maintenance activities. The owner has determined that the fire was a result of inadequate hot work procedures. No
2022-09-26 0 0 A pinhole leak from the liquid outlet line a raw gas separator. The owner has determined the pinhole to be a result of service related internal erosion-corrosion. Yes
2022-09-26 0 0 A heat exchanger in steam service developed a pinhole leak on shell side resulting in a loss of primary containment. Yes
2022-09-23 0 0 A firetube in a high pressure steam boiler collapsed due to localized overheating. The overheating was a result of excessive scale due to inadequate water treatment. Yes
2022-09-15 0 0 A fire occurred at a wood processing facility wood flakes spontaneously combusting. The Owner has determined the cause to be unrelated to pressure equipment but did result in some pressure piping damage. Yes
2022-09-14 0 0 A fire resulted in damage to several pressure vessels and piping in a compressor building. The owner has determined that the fire was caused by a leak from third stage discharge piping. Yes
2022-09-13 0 0 A fire was reported in a Steam Generator unit. Upon further investigation, the owner confirmed the location of fire to be contained to the Burner Management System (BMS) and confirmed no additional damage to pressure boundary. No
2022-09-12 0 0 A loss of containment reported from an air-cooled heat exchanger. The Owner suspects the leak to be the result of pitting due to corrosion. Yes
2022-09-06 0 0 During maintenance, an unsafe condition was reported when a heat exchanger bundle was found to be damaged. The owner has determined that the exchanger exceeded the maximum design temperature during operation. No
2022-09-02 0 0 An unsafe condition was reported when back pressure from a well entered a test separator and discharged through the safety valve to the flair stack. Yes
2022-08-30 0 0 A heating boiler high limit control tripped but the fuel gas valve did not close resulting in overheating. The safety relief valve operated as intended and controls were damaged from the excessive temperature. No
2022-08-25 0 0 An Emergency Shut Down (ESD) valve did not close properly causing oil to fill the fuel gas scrubber resulting in an unintentional release through a vent on the regulator. No
2022-08-22 0 0 A leak was discovered from a plug on an aerial cooler. The owner has identified cause to be worn plug and incorrect installation of plug. Yes
2022-08-22 0 0 A high pressure boiler tripped causing the PSV super heater to release steam from the safety valve. The discharge piping caused the portion of the wooden roof surrounding it to catch fire. No
2022-08-22 0 0 A crack in a butt weld on the supply piping on a second stage suction scrubber. The owner has determined the crack to be a result of excessive vibration. Yes
2022-08-19 0 0 A heat exchanger exceeded its design temperature due to an operational error. No
2022-08-18 0 0 A fire was reported in a pumpjack engine room due to an unintentional release of hydrocarbon. The owner has determined that the drain valve on the fuel gas scrubber allowed hydrocarbon to come into contact with an ignition source resulting in the fire. No
2022-08-17 0 0 During a severe thunderstorm, a lightning strike occurred at a well site and resulted in a fire damaging a separator building. No
2022-08-16 0 0 A braided hose failed due to mechanical damage. The Owner believes the damage was initiated during installation. Yes
2022-08-16 0 0 During maintenance a pressure vessel was over-pressured due to an incorrect configuration of associated piping. No
2022-08-12 0 0 A drain was leaking from a flange resulting in a loss of containment. The owner has determined the leak was a result of corrosion. Yes
2022-08-11 0 0 A leak was discovered at a catalyst tube flanged connection on a reformer furnace resulting in a fire. The Owner suspects the cause of the fire to be insufficient torque applied to the flange bolts. Yes
2022-08-10 0 0 A pinhole leak was discovered from an amine cooler as a result of internal corrosion. Yes
2022-08-10 0 0 A thermowell injector failure resulted in a loss of containment. Owner suspects the cause to be vibration. Yes
2022-08-09 0 0 A fire was reported at a production facility damaging some pressure piping. The fire was not caused by pressure equipment. No
2022-08-04 0 0 Operations discovered a leak from a weld on the upper bridle nozzle on an Amine Flash Drum. The owner believes this to be a result of high point corrosion due to condensation forming inside the vessel. Yes
2022-08-03 0 0 An unsafe condition was reported due to a localized hot spot on boiler casing due to previously plugged tubes and lack of insulation/cooling effect of tubes between flue gas and outer casing. No
2022-07-31 0 0 Failure of boiler feedwater pipe nipple resulted in a loss of containment. The owner has determine the leak was a result of Corrosion Under Insulation (CUI). Yes
2022-07-30 0 0 Operations discovered leaks from several flanged connections on condensate piping. The owner believes that a water hammer event occurred due to a plant trip resulting in the flanged connections becoming loose. Yes
2022-07-29 0 0 An unsafe condition was reported as a result of abnormally high surface temperature of an air receiver. The owner determined the cause to be oil bypassing into the air receiver and igniting. No
2022-07-28 0 0 Loss of containment reported from a cracked weld on pressure transmitter piping associated with a hydrogen compressor. Owner has determined the crack to be a result of excessive vibration. Yes
2022-07-28 0 0 Failure from service related erosion resulted in a loss of containment from pressure piping of an Incline Plate Separator (IPS) Feed Header System. Yes
2022-07-27 0 0 A through wall crack-like defect was discovered in a boiler. Upon investigation the cause was determined to be localized flow-accelerated corrosion. Yes
2022-07-25 0 0 A Loss of containment was reported due to a pinhole elbow on blowdown piping from a coker. The owner believes the pinhole to be a result of internal wall loss due to impingement from flow conditions. Yes
2022-07-21 0 0 An unsafe condition was reported as a result of pressure piping being damaged by a hydrate slug. No
2022-07-21 0 0 A pinhole resulted in a loss of containment from high pressure steam piping associated with a Heat Recovery Steam Generator (HRSG). The owner has determined the cause to be flow accelerated corrosion. Yes
2022-07-20 0 0 Inlet piping to safety valve failed due to overpressure. The owner believes that the safety valve was inadequately supported. Yes
2022-07-19 0 0 An unsafe condition was reported when a safety relief valve outlet was found to be blocked. The blockage was a result of the accumulation of process fluid due the valve passing. No
2022-07-19 0 0 An unsafe condition was reported as a result of overpressure incident was reported due to an inadequate lock out procedure. No
2022-07-15 0 0 A pinhole was found on a piping weld resulted a loss of containment. The owner believes this to be caused by internal corrosion. Yes
2022-07-13 0 0 A loss of containment from an elbow in a piping system resulted from internal corrosion. Yes
2022-07-09 0 0 Operations discovered tube leaks in a reboiler. The owner believes the cause to be corrosion. Yes
2022-07-07 0 0 Loss of containment reported as a result of a loose flanged connection on a reboiler. The owner has determined the cause to be incorrect torque applied to flange bolting. Yes
2022-07-04 0 0 During operation of a fired treater the firetube failed (through-wall crack), releasing process fluid. The fluid ignited causing a fire. Yes
2022-06-30 0 0 Operations discovered process fluid weeping from plugs installed on an air cooled hear exchanger. The owner believes the plugs to be leaking due to poor installation. Yes
2022-06-30 0 0 Operations discovered a rupture in a 12-inch high pressure steam line that went undetected as the line was out of service. The owner believes was attributed to a freezing event detected until re-purging of the line. Yes
2022-06-27 0 0 An unsafe condition was reported due to the discovery of not fully open block valve in the pressure relief path of a piping system. No
2022-06-27 0 0 A pinhole leak was discovered at a nozzle weld on a pressure vessel. The Owner has attributed the cause to damaged coating and corrosion. Yes
2022-06-24 0 0 A loss of containment was reported due to a socket weld pinhole at the isolation valve on a steam level column. The Owner believes the leak to be caused by a fabrication defect within the weld material. Yes
2022-06-22 0 0 An unsafe condition was reported following the repair of a boiler. The hydrostatic test pressure was inadvertently increased beyond required pressure. The most likely cause is that the test procedure was not adhered to. The boiler is undergoing a fitnes No
2022-06-22 0 0 Tube leaks reported from a horizontal reboiler. The Owner believes the leaks to be caused by corrosion. Yes
2022-06-20 0 0 A leak was discovered from a weld on an oil treater firetube. The owner believes a welding defect to be the probable cause. Yes
2022-06-13 0 0 An unsafe condition was reported due to an operator discovering a crack in a pipe fitting (threaded reducer) on compressor pressure gauge. No loss of containment reported. Yes
2022-06-07 0 0 A loss of containment from a catalyst transfer line (long sweep elbow), resulted in a localized fire at the leak location. Owner believes the cause to be internal erosion from the catalyst. Yes
2022-06-06 0 0 Following a shut down and during start-up, a leak was found in a Thermal Liquid Heating System. The Owner has determined this to be caused by thermal expansion causing resulting in a cracked tube. Yes
2022-06-02 0 0 A Pinhole in a pressure piping system resulted in a loss of containment. The owner believes the cause to be a weld defect. Yes
2022-06-01 0 0 An unsafe condition was reported due to a high pressure switch on a steam boiler was found to be tripping at higher levels than the set point. No loss of containment reported. No
2022-05-30 0 0 A weld on a coupling failed causing the coupling & plug to detach from the vessel. The owner believes that the weld did not meet the correct joint design from original construction. Yes
2022-05-29 0 0 A fire was reported as a result of a loss of containment. The source of the fluid was a pump discharge line. Yes
2022-05-27 0 0 An operator found emulsion leaking from a pinhole of 3 inch tee in a piping system resulting in a loss of containment due to internal corrosion. Yes
2022-05-26 3 0 An NPS 8 inch elbow on a steam outlet header ruptured, released steam which burned three workers (minor burns). The failure is believed to be associated with internal erosion/corrosion of the elbow. Yes
2022-05-24 0 0 Hydrocarbon was released inside a compressor building resulting in a fire. The fire was contained in the compressor building and is believed to have been caused by the mechanical failure of a suction valve cap. No
2022-05-24 0 0 After emptying a propane storage tank, the truck drove away with hoses still attached damaging the outlet nozzle of the pressure vessel. Yes
2022-05-20 0 0 A leak from a flanged connection at a furnace outlet resulted in a small fire that did not cause any damage. The owner indicates the leak to have been a result of slight movement of the equipment during operation. No
2022-05-17 0 0 Pinhole was discovered in a condensate line resulting in a loss of containment. The Owner believes the cause to be internal erosion and corrosion. Yes
2022-05-16 0 0 Gasket on process side of treater failed causing release of oil. Yes
2022-05-13 0 0 A firetube leak was discovered on a thermal fluid heater resulting in a loss of containment. The Owner believes that a poor quality weld repair resulted in the leak. Yes
2022-05-11 0 0 A pinhole leak developed in the bottom head of a of an inlet separator due to internal corrosion. Yes
2022-05-06 0 0 An air reciever was placed into service without a proper installation inspection and without a PSV. The Owner will address their installation practices. No
2022-05-04 1 0 Worker received minor burns when blanket gas piping was being isolated with a blind. The remaining gas ignited due to the wrench work (hot work). Yes
2022-05-03 0 0 An Operator found gas leaking from a pressure gauge associated with a piping system. Owner believes the cause of failure to be the plug on top of the gauge. Yes
2022-04-27 0 0 Pinhole found in a 2||| ball valve resulting in a loss of containment. The Owner will re-evaluate the valve's suitability for the intended service. Yes
2022-04-26 0 0 A pinhole was found in a 2||| propane line which resulted in a loss of containment. The Owner believes the cause to be corrosion under insulation (CUI). Yes
2022-04-25 0 0 Operator observed smoke coming from a de-ethanizer vessel and proceeded to shut the unit down. Upon investigation it was determined that a through wall hole was in the process bundle allowing hydrocarbon to release and catch fire within the vessel. Yes
2022-04-23 0 0 Boiler feedwater line ruptured resulting in boiler shutdown due to low water condition. The owner believes the feedwater line failed as a result of flow accelerated corrosion Yes
2022-04-22 0 0 A threaded pipe nipple on a PSV inlet cracked resulting in a loss of containment. The owner believes the cause to be vibration induced fatigue. Yes
2022-04-22 0 0 A test separator developed a leak from the bottom head. Owner has determined this to be corrosion developed as a result of the vessel not having a drain outlet. Yes
2022-04-18 0 0 Loss of containment resulted from a frozen section of a piping system. The Owner has determined the probable causes to be inadequate insulation and corrosion under insulation (CUI). Yes
2022-04-16 0 0 A leak was discovered from a tube bundle of a stabilizer reboiler. The leak was caused by pitting due to the process fluid and high operating temperatures. Yes
2022-04-15 0 0 A crack on a 3/4 inch pipe nipple from a compressor bottle resulted in a loss of containment. Owner believes the cause of the crack to be fatigue from excessive vibration. Yes
2022-04-14 0 0 An operator discovered a leak from the packing of a 2 inch ball valve allowing an unintentional release of emulsion fluid. The owner believes that the packing studs may have become loose due to vibration during service. Yes
2022-04-14 0 0 Flange gasket leak resulted in a loss of containment. The Owner believes the cause to be improper installation of the gasket. Yes
2022-04-13 0 0 A 2 inch line froze and resulted in a loss of containment. The Owner believes the probable cause to be inadequate maintenance practices to prepare system for cold weather. Yes
2022-04-13 0 0 Piping split due to freezing. Owner believes the deadleg configuration to be the cause of the failure. Yes
2022-04-08 0 0 An unsafe condition was reported when pressure equipment was returned to service following maintenance activities with a blind flange still installed on the inlet path of a PSV. The owner is reviewing the related procedures to ensure they are adequate. No
2022-04-07 0 0 A pinhole leak was discovered on a condensate line. The Owner believes the probable cause of the leak to be internal erosion and corrosion of carbon steel piping. Yes
2022-04-06 0 0 A stage 2 cooler had a crack on the inlet nozzle. The Owner suspects the crack to be caused by mechanical fatigue due to vibration. Yes
2022-04-01 0 0 Pinhole leak discovered in dead leg nozzle of separator due to internal corrosion. Yes
2022-04-01 0 0 Firetube on a Thermal Liquid Heater cracked leading to oil leaks and a fire. The Owner believes the leak was caused by mechanical fatigue due to thermal cycling. Yes
2022-03-31 0 0 A thermowell was ejected from a tapped blind flange on a vessel and turned into a projectile and imbedded into a nearby plastic drum. The Owner believes the root cause of this accident to be inadequate pre-commissioning procedures/practices. Yes
2022-03-31 0 0 A threaded nipple connected to a suction scrubber cracked leading to loss of containment. The Owner believes vibration induced fatigue to be the cause of the crack. Yes
2022-03-30 0 0 Four boiler tubes failed due to overheating. The overheat condition was caused by heavy scaling due to a lack of appropriate water treatment. Yes
2022-03-30 1 0 Release of hydrocarbon in a sample unit ignited and caused a fire. Owner believes the cause to be related to isolation procedures. No
2022-03-29 0 0 A loss of containment was reported from a ball valve connected to a pressure vessel nozzle. The ball valve was passing which resulted in the leak. Yes
2022-03-28 0 0 Steam leak on boiler gauge glass due to gasket failure. Yes
2022-03-28 0 0 Frozen piping resulted in a loss of containment. The freezing was a result of inadequate maintenance practices. Yes
2022-03-28 0 0 Frozen piping resulted in a loss of containment. The freezing was a result of inadequate maintenance practices. Yes
2022-03-28 0 0 Frozen piping resulted in a loss of containment. The freezing was a result of inadequate maintenance practices. Yes
2022-03-28 0 0 A fitting failed which resulted in a loss of containment. Owner suspects the main cause to be a localized corrosion due to temperature and the acidic environment. Yes
2022-03-28 0 0 Frozen piping resulted in a loss of containment. The freezing was a result of inadequate maintenance practices. Yes
2022-03-28 0 0 Routine operational rounds discovered a pressure boundary breach from a heat exchanger. The Owner suspects that poor installation of tuebsheet plugs as the primary cause. Yes
2022-03-28 0 0 Freezing in a pressure piping system resulted in a loss of containment. The Owner has confirmed that the cause of freezing was due to the uninsulated section without heat tracing. Yes
2022-03-28 0 0 Operations discovered a loss of containment from damaged piping. The Owner believes the damage to be a result of by a fabrication defects and fatigue due to vibration. Yes
2022-03-24 0 0 Loss of containment from a 1.5 recirculation line. The Owner believes the cause to be a combination of welding defects from fabrication and excessive vibration during service. Yes
2022-03-24 0 0 Operations reported a loss of containment from a reactor condensate return line which failed due to freezing. The freezing was a result of adequate heat tracing. Yes
2022-03-24 0 0 An operator found a leak on a reactor manway flange. The Owner determined that the manway studs were not properly tightened which resulted in the gasket being dislodged. Yes
2022-03-23 0 0 A loss of containment was reported due to a leak identified from a degasifier vessel. The owner believes that the coating on the carbon steel portion of the vessel failed allowing CO2 corrosion to occur. Yes
2022-03-23 0 0 Operator found crack on a nozzle repad on a compressor bottle. Owner believes the cause to be excessive vibration. Yes
2022-03-22 0 0 Leaks were found in 3 butt welds on the coils inside a heater. The Owner believes weld porosity to be the cause of the leaks. Yes
2022-03-21 0 0 Pinhole leak in isolation valve discovered by operations. The pinhole was a result of internal corrosion. Yes
2022-03-21 0 0 Operator discovered a leaking pipe spool on the elbow. The Owner believes the leak to be caused by internal corrosion. Yes
2022-03-21 0 0 During the B31.3 hydrostatic test, a newly fabricated pipe spool failed and leaked along a suspected Electric Resistance Weld (ERW) seam. The piping fabricator had a Mill Test Report (MTR) indicating the pipe was |||hot finished seamless|||. Yes
2022-03-16 0 0 Flexible hose ruptured due to overpressure resulting in a release of propane. The Owner believes the shutdown device did not engage due to malfunction of controls. Yes
2022-03-14 0 0 Ammonia discovered on the brine side of a refrigeration plant at a recreational facility. A tube leak in the systems chiller is believed to be the cause. The system was shut down for repair or replacement. Yes
2022-03-11 0 0 Pinhole leak in air-cooled heat exchanger tube due to corrosion. Yes
2022-03-10 0 0 Malfunctioning electrical heat tracing resulted in the failure of a steam trap due to freezing. Yes
2022-03-07 0 0 A failure in a pressure piping system resulted in a loss of containment due to freezing. The section of piping froze due to non-operational heat tracing. Yes
2022-03-04 0 0 A through-wall hole was identified on pressure piping resulted in a loss of containment. The owner believes the hole was a result of erosion. Yes
2022-03-04 0 0 Malfunctioning electrical heat tracing resulted the failure of a steam trap due to freezing. Yes
2022-03-04 0 0 A through-wall hole was identified on pressure piping resulted in a loss of containment. The owner believes the hole was a result of erosion. Yes
2022-03-03 0 0 Failure of an elbow in a gas condensate return line resulted in a loss of containment. The owner has identified the failure to be internal corrosion due to the fluid service. Yes
2022-03-02 0 0 Vibration of a compressor package resulted in a cracked nozzle on a scrubber. Yes
2022-03-02 0 0 A fire occurred in the boiler room of a gas-fired boiler as a result an unintentional release of propane. Propane was being used as a temporary fuel source and workers had been troubleshooting unstable combustion. Yes
2022-02-28 0 0 Tubes reported to be leaking in a reboiler due to pitting. The owner indicates that the cause of the pitting is sour product, salt and other deposits, creating a corrosive sludge in the condensate system. Yes
2022-02-24 0 0 Piping leak due to accumulated corrosion in deadleg. Yes
2022-02-22 0 0 Tube failure in a hydrogen reformer furnace. The owner believes that the high temperature service resulted in creep like damage to the tube. Yes
2022-02-18 0 0 Steam leak on boiler flange caused by improper torquing practices. Yes
2022-02-18 0 0 Piping leak associated with pitting and corrosion. Yes
2022-02-18 0 0 Frozen tube and internal corrosion to in an air cooled heat exchanger resulted in a loss of containment. Yes
2022-02-16 0 0 Boiler feedwater piping failure at elbow due to service erosion. Yes
2022-02-15 0 0 Through wall crack in a boiler feedwater (BFW) preheater. Owner has determined the cause to be carbonate stress corrosion cracking(SCC)caused by corrosion under insulation (CUI). Yes
2022-02-15 0 0 Gasket leak between the channel cover and channel shell of a heat exchanger. The owner has determined that the sealing surface of the channel head cover had signs of steam cutting which would have contributed to damaging the gasket. Yes
2022-02-15 0 0 Loss of containment due to tube leak on air cooled heat exchanger. Yes
2022-02-14 0 0 Tube leaks on a reboiler due to corrosive sludge. No
2022-02-11 0 0 Loss of containment reported due to freezing. The freezing is attributed to electrical heat tracing failure. Yes
2022-02-10 0 0 Gauge glass failure on start-up of a Heat Recovery Steam Generator (HRSG). The owner determined that the gauge glass was not intended for operating pressure, it was only designed for initial boil out operation. Yes
2022-02-10 0 0 Air cooled heat exchanger tube leak due to freezing. Yes
2022-02-10 0 0 Pinhole leak was found in an elbow on a section of dead leg piping. Yes
2022-02-10 0 0 An unsafe condition was reported due to combustion air being restricted resulting in a trip and subsequent heater shutdown. No
2022-02-09 0 0 Small leak on firetube exhaust stack on an indirect fired heater. Yes
2022-02-09 0 0 A leak on a 2 inch tee was found on a pressure piping system. The cause is under investigation by the owner. Yes
2022-02-08 0 0 Frozen condinsate piping due to lack of flow. Yes
2022-02-07 0 0 Frozen pipe failure due to extreme weather. Identified as process water (non-expansible service). Yes
2022-02-07 0 0 Loss of containment on steam piping due to erosion. Yes
2022-02-06 0 0 Failure of electrical heat tracing resulted in pressure piping being frozen. No
2022-02-05 0 0 Heat exchanger frozen due to process upset and heat tracing was not installed. Yes
2022-02-04 0 0 Pin hole leak in vessel nozzle. Yes
2022-02-03 0 0 Failure of warm up piping between a Heat Recovery Steam Generator (HRSG) and pressurized blowdown line. The owner has determined that the leak was a result of erosion. Yes
2022-02-03 0 0 Firetube failure in a heater due to a through wall crack at the location of a previous repair. The owner has determined that the previous repair was not conducted correctly. Yes
2022-02-02 0 0 Fire at facility caused by oil leak from compressor engine.
2022-02-01 0 0 Loss of containment resulting from a gasket failure on a firetube. Yes
2022-01-31 0 0 Heat exchanger gasket failure resulted in a loss of containment. Yes
2022-01-31 0 0 Pinhole leak in condensate line due to internal corrosion. Yes
2022-01-31 0 0 Condensate/steam leaking out of the body of an inlet valve. Yes
2022-01-31 0 0 Leak in low pressure feeder vent line from a welded connection. Yes
2022-01-31 0 0 Pinhole and localized thinning identified on steam piping resulted in a loss of containment. Yes
2022-01-31 0 0 Pinhole leak from a condensate line. Yes
2022-01-31 0 0 Boiler tube failure due to high temperature corrosion. Yes
2022-01-28 0 0 Pin hole leak reported from the bottom of an air receiver. Yes
2022-01-28 0 0 Loss of containment reported from the steam jacket of a pressure piping system. The owner indicates that the steam jacket was internally pitted. Yes
2022-01-28 0 0 Pressure piping leak detected at a threaded connection. The owner has identified the cause as Corrosion Under Insulation (CUI). Yes
2022-01-28 0 0 Leak from flanged connection in a pressure piping system vent line. The owner has determined that the leak occurred due to misalignment of the flanged connection. Yes
2022-01-26 0 0 Fire resulted from loss of containment on threaded piping. The loss of containment is attributed to vibration. Yes
2022-01-25 0 0 Loss of containment reported from a pressure piping system due to freezing. Yes
2022-01-24 0 0 Frozen pressure piping line due to faulty electrical heat tracing. Yes
2022-01-24 0 0 Packing failure on the gauge glass of a waste heat boiler resulted in a leak. Yes
2022-01-20 0 0 Loss of containment from a heat exchanger due to frozen tubes. The owner believes that the source of undetected water in the exchanger was undrained steam condensation. Yes
2022-01-19 0 0 A vertical glycol seperator was subjected a pressure exceeding its maxamum allowable working pressure (MAWP). The owner has determined the cause of the overpressure was a frozen pressure relief discharge line. No
2022-01-18 0 0 Piping failure on a steam line due to erosion. Yes
2022-01-17 0 0 Frozen pressure piping resulted in a loss of containment. The frozen piping was a result of faulty electrical heat tracing. Yes
2022-01-17 0 0 An air leak from a drain valve on instrument air tubing was discovered. The owner has determined that the leak was a result of a through wall crack in the body of the valve due to accumulated condensation inside the valve which subsequently froze. Yes
2022-01-14 0 0 Loss of containment due to a sight glass failure on a boiler. Yes
2022-01-14 0 0 Pressure piping leak at a flanged joint. The owner has determined that the leak was a result of the due to the installation of an incorrect gasket. Yes
2022-01-13 0 0 Pin hole leak in vessel nozzle. Yes
2022-01-13 0 0 Heat Exchanger tube failure due to freezing. Yes
2022-01-12 0 0 Freezing caused a pressure piping line to split in two locations resulting a release of steam. Yes
2022-01-10 0 0 Frozen pressure piping line due to faulty electrical heat tracing. No
2022-01-08 0 0 Piping failure at an elbow location due to internal erosion. Yes
2022-01-08 0 0 Frozen pressure piping line due to faulty electrical heat tracing. No
2022-01-07 0 0 Failure of tubes and tubesheet resulted in a loss of containment from a heating boiler. The failures were a result of excessive scale buildup in the boiler. Yes
2022-01-05 0 0 Loss of containment on a 3/4 inch steam bypass line. Yes
2022-01-04 0 0 Loss of containment reported due to failed tube on superheater section. Tube failure is attributed to localized overheating. Yes
2022-01-04 0 0 Pressure piping failure as a result of freezing. The freezing is attributed to a dead-leg in the piping system. Yes
2022-01-03 0 0 Crack on weld of compressor piping due to vibration service. Yes
2022-01-03 0 0 Frozen pressure piping line due to faulty electrical heat tracing. Yes
2022-01-03 0 0 Tubing leaks identified due to general corrosion. Yes
2022-01-03 0 0 Loss of containment on boiler feed water(BFW) due to corrosion under insulation(CUI). Yes
2021-12-31 0 0 Pressure piping found to be frozen due to inadequate insulation and lack of heat tracing. No
2021-12-30 0 0 Loss of containment reported as result of a through wall crack on lower 2 inch level gage nozzle and vessel shell on a evaporator distilate tank. Yes
2021-12-30 0 0 Heat Exchanger tube failure due to freezing. Yes
2021-12-29 0 0 Loss of heat in building resulted in piping and boiler freezing. Yes
2021-12-26 0 0 A leak from a flanged connection resulted in a subsequent fire. Yes
2021-12-21 0 0 A crack on the weldneck of a piping flange was found by operations. The owner indicates the cause to be vibration induced fatigue. Yes
2021-12-21 0 0 Flow induced erosion caused a failure in an elbow in a pressure piping system. Yes
2021-12-18 0 0 Frozen pressure piping due to faulty electrical heat tracing. Yes
2021-12-18 0 0 Frozen pressure piping line due to faulty electrical heat tracing. Yes
2021-12-14 0 0 A valve failed on a steam warm up line due to freezing. The freezing was caused by a lack of sufficient insulation and failed heat tracing. Yes
2021-12-12 0 0 A pressure piping line froze and split due to extreme cold weather. Yes
2021-12-10 0 0 Operational issue with fluid caused plate heat exchanger to freeze up. Yes
2021-12-10 0 0 Operational issue with fluid caused plate heat exchanger to freeze. Yes
2021-12-06 0 0 Aerial cooler tube leak caused by freezing. Yes
2021-12-06 0 0 Steam leak from heater coils at fillet welds. Fillet welds were found to have fabrication defects. Yes
2021-12-05 0 0 Frozen pressure piping line due to faulty electrical heat tracing. No
2021-12-04 0 0 Incorrect use of lock-out procedure resulted in release of process fluid. Yes
2021-12-03 0 0 Nozzle weld failure due to fabrication defects and excessive service vibration. Yes
2021-12-01 0 0 Overheating of product resulted in a fire causing exterior damage to a reboiler. Yes
2021-11-25 0 0 Frozen pressure piping line due to faulty electrical heat tracing. No
2021-11-25 0 0 Heat exchanger flange gasket leak.
2021-11-19 0 0 Several tubes failed in a heat exchanger as result of freezing due to inadequalty drained water following maintenance activities. Yes
2021-11-18 0 0 A leak of emulsion was discovered from a test header due to a pinhole leak resulting from internal corrsion. Yes
2021-11-15 0 0 Loss of containment due to check valve failure caused by valve material not suitable for service. Yes
2021-11-11 0 0 Manway gasket on a boiler was leaking. The root cause is related to the installation of the gaskets and torquing practices. Yes
2021-11-09 0 0 A tube failed on a fired heater due to localized overheating. Yes
2021-11-08 0 0 Loss of containment reported from a separator water level control valve. The leak was caused by a pinhole as a result of internal erosion damage. Yes
2021-11-01 0 0 A process piping system leaked due to corrosion under insulation (CUI). Yes
2021-10-25 0 0 A check valve in a process piping system failed due to internal corrosion resulting in a loss of containment. Yes
2021-10-23 0 0 A heat exchanger at a processing facility was damaged by fire that orgininated in atomospheric srorage tanks. No
2021-10-17 0 0 A leak from a pressure piping system was caused by a pinhole leak due to preferential corrsion at a weld. Yes
2021-10-01 0 0 Inadequate heat tacing and dead leg resulted in freezing of some pipe. Yes
2021-09-30 0 0 During startup after routine maintenance, process fluid leaked from a flanged connection and autoignited. There were no injuries or collateral damage. Yes
2021-09-24 0 0 Process fluid leaked from a flanged connection and auto-ignited. There were no injuries or collateral damaged. Yes
2021-09-20 0 0 During turnaround preparations a leak developed at a flanged connection on a vessel. The leaked hydrocarbons ignited resulting in a fire damaging piping and other equipment. No
2021-09-16 0 0 A pinhole leak developed in a process vessel at an area with high residual welding stress. Yes
2021-09-08 0 0 Operation discovered a leak from a reboiler at a process facility. The leak was the result of internal corrosion. Yes
2021-08-24 0 0 A sectional boiler at a process facility was damaged due to a fire in the boiler room as a result of a malfunctioning burner management system. No
2021-08-19 0 0 Leak in blow down line discovered due to corrosion. Yes
2021-08-19 0 0 A small crack was discovered on the transition section of the transfer line of an ethane cracking furnace. The crack was determined to be the result of creep damage. Yes
2021-08-19 0 0 A leak was discovered from a 30 inch light hydrocarbon pressure piping inlet line to compressor. The leak was a result of corrosion under insulation.
2021-08-14 0 0 Pinhole leak discovered on a nozzle of a process vessel. The pinhole was a result of external corrosion. Yes
2021-08-03 0 0 A loss of containment was discovered from a compressor bottle. The leak was determined to be a result of a crack at a nozzle weld on the compressor bottle. Yes
2021-08-03 1 0 A worker was removing a manway cover. Hydrocarbon vapour leaked out, ignited and burned the worker. No
2021-07-28 0 0 Leak discovered by operations from an air cooled heat exchanger. The leak was a result of internal corrosion. Yes
2021-07-27 0 0 A leak was discovered at a flange connection in a pressure piping system. The leak was a result of the gasket being installed incorrectly. Yes
2021-07-23 0 0 Ammonia leak detected from a section of pressure piping. The leak was determined to be the result of internal corrosion. Yes
2021-07-14 0 0 A fire destroyed two seperator packages at a hydrocarbon facility. The fire was a result of a vehicle accident nearby. No
2021-07-10 1 0 During decommissioning of wellsite, liquid overflowed from a flare stack resulting in a fire that injured a worker and damaged a pressure vessel. No
2021-07-07 0 0 Fire in a compressor building resulted in damage to pressure equipment. The fire was a result of faulty wiring. No
2021-06-28 0 0 Process fluid leaked onto hot catalyst resulting in an internal fire which damaged the pressure vessels. Yes
2021-06-22 0 0 A fire was reported at a heat medium heater as a result of a cracked firetube which allowed oil to leak and ignite.
2021-06-10 0 0 The bellows failed in a low water cutoff on a steam boiler causing the boiler to trip. Yes
2021-06-07 0 0 A NPS 8 to NPS 4 reducer in a boiler feedwater system failed due to flow assisted corrosion. Yes
2021-06-06 1 0 A worker disassembling a piping system was burned by contact from hot steam condensate. Yes
2021-06-04 0 0 Operations discovered a leak from the throttle and trip valve of a sulphuric acid steam turbine. The leak was cause by an improper seal between the body and bonnet of the valve. Yes
2021-05-26 0 0 Failure of refractory at the burner end of a boiler firetube resulted in short circuiting of flue gas which caused damage to the boiler tubes and tubesheet. No
2021-04-28 0 0 Pinhole leak discovered in a boiler tube due to internal corrosion. Yes
2021-04-26 0 0 Pinhole leak discovered from a three inch tee in a piping system. The pinhole was a result of corrosion due to internal coating failure. Yes
2021-04-26 0 0 A crack in the firetube in a free-water knock out vessel resulted in a leak. Yes
2021-04-16 0 0 Pinhole leak discovered on the drain line of an amine reboiler. The pinhole was a result of corrosion. Yes
2021-04-09 0 0 Loss of containment reported due to the failure of a section of process piping. The failure was a result of freezing caused by inadequate electrical heat tracing. Yes
2021-04-08 0 0 A fire in material handling equipment resulted in damage to several pressure coils. No
2021-04-07 0 0 A crack was discovered at a nozzle to shell weld of a compressor bottle. The crack was caused by fatigue due to vibration service and lack of a repad. Yes
2021-04-07 0 0 Loss of containment reported from pressure piping due to a failure caused by freezing. The freezing was a result of inadequate heat tracing. Yes
2021-04-07 0 0 Loss of containment reported due to the failure of a section of process piping. The failure was a result of freezing caused by inadequate electrical heat tracing. Yes
2021-04-03 0 0 A fire occurred during truck loading at an oil lease site. The fire was caused by static discharge ingniting oil that had leaked from the loading system. No
2021-03-30 0 0 A Crack was discovered at a weld in compressor piping. The crack was believed to be a result of fatigue from vibration in service. Yes
2021-03-29 0 0 Operator discovered a leak on a boiler feed water piping. The leak was a result of a pinhole caused by internal corrosion. Yes
2021-03-19 0 0 Steam heating boiler tube leak reported. The leak was a result of internal corrosion due to inadequate water treatment. Yes
2021-03-12 0 0 Operations determined process gas was leaking into the jacket of a steam-jacketed vessel. Yes
2021-03-12 0 0 Operator on morning rounds noticed the sample cooler (coil) on a boiler leaking. The sample cooler was isolated and maintenance was notified to replace the cooler. Yes
2021-03-10 0 0 Pinhole discovered in a steam line due to internal corrosion. Yes
2021-03-10 0 0 Loss of containment reported from a process piping system due to a cracked attachment weld. The crack was a result of fatigue caused by continuous vibration during service. Yes
2021-03-10 0 0 Creep damage caused deformation of a tube in a fired process heater. A crack developed at the deformation resulting in loss of containment. Yes
2021-03-04 0 0 A freeze rupture occurred at a 3/4 NPS branch connection off a 150 psi steam header. Yes
2021-03-03 0 0 While attempting to thaw a frozen drain line from a fuel gas scrubber a fire started and was extinguished without further incident. No
2021-02-26 0 0 Loss of containment reported due to the failure of a section of process piping. The failure was a result of localized internal erosion from the process fluid flow. Yes
2021-02-25 0 0 Loss of containment reported from a separator drain nozzle due to through wall internal corrosion. Yes
2021-02-24 0 0 Loss of containment reported due to the failure of a section of process piping. The failure was a result of freezing caused by electrical heat tracing malfunction. Yes
2021-02-23 0 0 Pinhole leak discovered from the drain piping of a separator. The pinhole was a result of internal corrosion. Yes
2021-02-22 0 0 A loss of containment was reported from a Natural Gas Liquid (NGL) process piping system due to the failure of a threaded pipe nipple connection. The failure was a result of fatigue due to vibration during service. Yes
2021-02-21 0 0 Operators observed loss of level in glycol heat exchanger. System was shut down. Fluid loss from tube was contained in the shell. Yes
2021-02-21 0 0 Loss of containment reported due to the failure of a section of process piping. The failure was a result of freezing caused by electrical heat tracing malfunction. Yes
2021-02-21 0 0 An operator was plant walk through to issue a hot work permit and noticed a sour gas odor. On investigation a leak due to external corrosion was found at a nameplate attachment. Yes
2021-02-20 0 0 Loss of containment reported from a threaded connection on a process piping system. The leak from the connection was a result of improper installation. Yes
2021-02-20 0 0 Loss of containment reported due to the failure of a section of process piping. The failure was a result of freezing caused by electrical heat tracing malfunction. Yes
2021-02-19 0 0 Loss of containment reported due to the failure of a section of process piping. The failure was a result of freezing due to inadequately insulated piping. Yes
2021-02-18 0 0 Small boiler supplying steam to an autoclave failed due to overheating and corrosion. Yes
2021-02-16 0 0 Operations discovered a leak from a pinhole in a process piping line. The pinhole was a result of internal corrosion. Yes
2021-02-09 0 0 Failure of a heat exchanger tube as a result of freezing. Yes
2021-02-08 0 0 A leak was discovered in compressor suction piping. The leak was determined to be the result of fatigue due to vibration service. Yes
2021-02-05 0 0 Failure of an oil treater firetube allowed hydrocarbon to enter the tube subsequently ignited, resulting in a fire. Yes
2021-02-03 0 0 A leak was discovered on a steam line due to a pinhole leak. Yes
2021-02-02 0 0 Operators discovered a process piping rupture due to freezing. The freezing was a result of improper isolation of the piping which allowed water into the line. Yes
2021-01-20 0 0 A loss of containment was reported due to tubes failing on an air cooled heat exchanger. The tube failure was located at a weld and is believed to be the result of vibration. Yes
2021-01-20 0 0 Loss of containment reported from a process piping system. The leak was determined to be the result of thermal fatigue at a weld due to temperature cycling of the product stream. Yes
2021-01-19 0 0 Loss of containment reported from several intermediate superheater tubes in a recovery boiler at a pulp mill. The tube failures were attributed to fatigue due to constant swaying of the superheater platens during operation. Yes
2021-01-19 0 0 Glycol heating boiler tube leak reported due to external corrosion. Yes
2021-01-15 0 0 A leak was discovered on the nozzle to shell weld of hydrogen cooler. The leak was determined to be the result of chloride stress corrosion cracking. Yes
2021-01-08 0 0 Ammonia leak reported from a heat exchanger at a refrigeration plant. The leak was the result of an exchanger tube failure due to corrosion. Yes
2021-01-07 0 0 An economizer tube bend was found to be leaking due to cracks. The cause was determined to be the result of stress corrosion cracking. Yes
2021-01-06 0 0 Operations discovered a leak at a steam isolation valve. Upon investigation it was determined the leak was from the bonnet to body connection due to inadequate bolting. Yes
2021-01-06 1 0 While conducting maintenance work, a contractor suffered burns to the hands while draining the boiler. No
2020-12-30 0 0 Several boiler tubes were reported to have failed due to low water condition. The low water condition was undetected as a result of a malfunctioning sight glass. Yes
2020-12-23 0 0 A leak was discovered on the shell of a heat exchanger due to internal corrsion. Yes
2020-12-21 0 0 Operations discovered a temporary steam hose had ruptured. The hose is believed to have previously sustained undetected damage that resulted in the subsequent failure. Yes
2020-12-17 0 0 Ammonia leak discovered at an ice plant. The leak was determined to be the result of a cracked gasket on a flanged piping connection from the compressor. Yes
2020-12-17 0 0 During maintenance, a boiler tube in a heating boiler froze and split due to a cold backdraft through the chimney stack. Yes
2020-12-03 0 0 A heating boiler leaked due to a crack in the boiler drum. Yes
2020-12-02 0 0 A leak in a compressor building was discovered due to a through wall crack at a piping butt weld. The crack was a result of fatigue due to vibration during service. Yes
2020-12-01 0 0 A firetube in an oil treater failed due to localized overheating resulting in a loss of containment. Yes
2020-11-30 0 0 Re-use of gasket resulted in a leak at a handhole on a power boiler. Yes
2020-11-28 0 0 Operators discovered a process fluid leak at the inlet to a pressure vessel. The leak was determined to be a result of through wall erosion related to the process flow. Yes
2020-11-28 0 0 A leak was discovered from an elbow on high pressure steam piping. The leak was determined to be the result of internal erosion. Yes
2020-11-20 0 0 A pinhole leak was discovered in the furnace of a thermal liquid heating system. Yes
2020-11-13 0 0 Boiler tube failure due to low water condition at a power plant. Yes
2020-11-13 0 0 Operations discovered feezing in a steam trap and associatted piping. The freezing did not result in a loss of containment and was caused by failure of the heat tracing. No
2020-11-09 0 0 A pinhole leak was discovered in the sidewall header of a large heating boiler. The pinhole was a result of internal corrosion. Yes
2020-11-06 0 0 A leak was discovered at a crack in a steam line. The crack was a result of thermal fatigue. Yes
2020-11-06 0 0 Operations discovered a steam leak from a flanged connection on a steam pipeline. The leak was determined to be the result of improper installation of the flange gasket. Yes
2020-10-31 0 0 A natural gas leak was discovered in a compressor buidling. The leak was from a cracked relief valve body caused by fatigue from vibration during service. Yes
2020-10-29 0 0 A fire was caused by a leak at a dissimilar metal weld in a steam methane reformer furnace tube. Yes
2020-10-28 0 0 A heat exhanger was shut down after observed process fluid collecting on the ground below a shell and tube heat exchanger. The leak was from a through-wall crack that orignated at a baffle in the channel head. Yes
2020-10-26 0 0 A pinhole was discovered in a socket weld on the drain line of a remote level indicator. The pinhole is suspected to be the result of a manufacturing defect. Yes
2020-10-26 0 0 Failure of a section of 0.5 inch process piping from the discharge of a drain booster pump resulted in a loss of containment. The failure was a result of fatigue cracking from excessive vibration during service. Yes
2020-10-24 0 0 Pinhole leak was discovered in the steam jacket of a sulphur drain pot. The pinhole was a result of corrosion. Yes
2020-10-22 0 0 Operators discovered a pinhole leak from a on a 2 inch process piping line at a flange to pipe weld. The pinhole was due to internal corrosion. Yes
2020-10-22 0 0 Operations personnel discovered leaking produced water from the transfer piping that conveys water from the separator vessel to the storage/disposal tank at a well head. The leak was a result of internal corrosion. Yes
2020-10-16 0 0 Operators discovered a leak from a 3 inch bypass valve at a Steam Assisted Gravity Drainage (SAGD) facility. The leak was due to a pinhole in the valve body. Yes
2020-10-16 0 0 A crack at an inlet nozzle of a heat exchanger resulted in a small fire in a chemical processing facility. The crack is believed to be the result of creep induced damage. Yes
2020-10-09 0 0 Operators discovered a leak from a pipe nipple on the upper shell of a glycol contactor. The leak was caused by a through wall crack in the threads of the nipple due to vibration during service. Yes
2020-10-03 0 0 A steam leak was discovered from a 16 inch valve. The leak was caused by corrosion and other service related conditions. Yes
2020-10-02 0 0 During operation of a fired heater the firetube failed at the tube to tubesheet weld releasing hydrocarbon and resulting in a fire. Yes
2020-10-02 0 0 A fire was caused by a leak at a dissimilar metal weld in a steam methane reformer furnace tube. Yes
2020-10-01 0 0 A steam leak was discovered at a flanged connection. The leak was caused by the installation of an improper gasket. Yes
2020-09-28 0 0 Operators responded to a H2S alarm at a produced water pumping station, and discovered a leak from the bottom head of a water filter that was in operation. The leak was a result of internal corrosion due to breach of the internal coating. Yes
2020-09-25 0 0 A fire underneath an heat exchanger at a sour gas processing facility was reported. The fire resulted from a leaking drain valve which allowed excess hydrocarbon to accumulate in the spill containment receptacle. Yes
2020-09-23 0 0 A pinhole leak was discovered on propane inlet piping to a process chiller. The pinhole is believed to be a result of external damage due to corrosion under insulation. Yes
2020-09-21 0 0 Operations discovered a leak from underneath the insulation of a process piping system. The leak is believed to be caused by internal corrosion associated with the process. Yes
2020-09-18 0 0 Leak discovered in the bottom cone of a sand separator vessel. The leak was a result of localized internal wall thinning due to erosion. Yes
2020-09-16 0 0 A pinhole leak was discovered on a process piping system. Pinhole was a result of internal corrosion. Yes
2020-09-04 0 0 A leak was discovered from a compressor discharge bottle. The leak was a result of a through wall crack, due to vibration, on the inlet nozzle repad to shell weld. Yes
2020-09-04 0 0 High pressure boiler feedwater was unintentionally released due to the failure of the graphite packing in a 6 inch gate valve. Yes
2020-09-03 0 0 A Pinhole leak discovered in the drain line of a sour service separator due to corrosion. Yes
2020-09-01 0 0 A block valve packing failure resulted in a loss of containment of liquid nitrogen at a tank offloading station. The valve packing failed due to a lack of regular maintenance. Yes
2020-09-01 0 0 A gasket failure on the gage glass of a carbon monoxide (CO) boiler drum resulted in a loss of containment. Yes
2020-09-01 0 0 A pinhole leak was discovered in a check valve of a process piping system. The pinhole was a result of internal corrosion. Yes
2020-09-01 0 0 A gasket failure at a pressure control valve on a process piping system resulted in a loss of containment of natural gas. Yes
2020-08-26 0 0 A pinhole leak was discovered in a light naphtha piping system. The pinhole was a result of internal corrosion. Yes
2020-08-21 0 0 A pinhole leak was discovered in a 2 inch condensate piping elbow. The pinhole was due to internal corrosion and erosion. Yes
2020-08-21 1 0 An operator was burned by a flash fire while bleeding hydrocarbon condensate into a pail. No
2020-08-21 0 0 A leak was discovered from an interstage scrubber in a compressor building. The leak was a result of a cracked pipe nipple on the drain of the sight glass, due to vibration and over torqueing of the pipe nipple during installation. Yes
2020-08-20 0 0 Operators discovered a leak from a nozzle on a process vessel due to internal corrosion. Yes
2020-08-20 0 0 A loss of containment was reported from a hot oil heater due to localized overheating causing several tubes to fail. Yes
2020-08-17 0 0 Operators discovered a leak from an instrument air receiver. The leak was a result of a through wall crack, due to vibration, at the weld of a support leg. Yes
2020-08-13 0 0 Operators discovered a leak at a process gas exchanger nozzle weld. The leak was a result of cracking due to suspected vibration during service. Yes
2020-08-12 0 0 Overpressure of process piping caused a loss of containment from several bolted connections. The overpressure condition was due to a passing block valve which resulted in an inability to isolate the pressure source during maintenance. Yes
2020-08-07 0 0 An explosion in a compressor building and subsequent fire resulted from the failure of a braided hose connection allowing hydrocarbon to leak. Yes
2020-08-06 0 0 An operator discovered a leak from an air dryer during routine rounds. The leak was a result of continuous vibration while the dryer was in operation. Yes
2020-08-05 0 0 Erosion inside the nozzle of a process vessel resulted in a loss of containment. Yes
2020-08-05 0 0 A through wall crack in the threads of a pipe nipple beneath the second stage discharge safety valve resulted in a loss of containment in a compressor package building. The crack was a result of fatigue due to excessive vibration during operation. Yes
2020-08-04 0 0 A firetube in an oil treater failed due to localized overheating resulting in a fire. Yes
2020-08-01 0 0 Operators discovered a leak at a process gas exchanger nozzle weld. The leak was a result of cracking due to suspected vibration during service. No
2020-07-27 0 0 An operator discovered a pinhole leak on the bottom head of a process vessel. The pinhole was a result of internal corrosion. Yes
2020-07-23 0 0 A leak at a weld on a boiler was discovered during operator rounds. The leak was determined to be a result of thermal fatigue. Yes
2020-07-20 0 0 Steam outlet piping from a depropanizer oil coalescer vessel was discovered to have ruptured. It is unknown when this failure occurred as the line is used infrequently, but the owner suspects it was a result of freezing. Yes
2020-07-15 0 0 Operators discovered a hydrogen sulphide leak from a compressor discharge bottle. Upon investigation it was determined that a nozzle had cracked at the weld to shell joint due to excessive vibration. Yes
2020-06-29 0 0 A leak from a Low Water Cut-off (LWCO) valve caused a high pressure boiler to shut down. The leak was caused by a cracked bellow inside the LWCO valve. Yes
2020-06-22 0 0 A loss of containment was reported due to a crack in the threaded area of a fitting attached to a recycle valve on a compressor package. The crack was a result of fatigue due to excessive vibration during operation. Yes
2020-06-18 0 0 Leak discovered at the weld neck of the inlet flange of an aerial cooler. The leak was a result of a small crack that had formed due to continuous vibratory service. Yes
2020-06-15 0 0 Pinhole leak discovered in a socket weld of piping attached to float column in an acid gas compressor package. Yes
2020-06-10 0 0 Operator discovered a steam leak from the vent line of a heater at a pulp mill. The leak was caused by a crack in the vent line as a result of fatigue from vibration service. Yes
2020-06-10 0 0 Loss of containment reported due to a failed steam hose at the coupling. Investigation revealed that the hose material had become brittle due to age and constant usage. Yes
2020-06-04 0 0 Operators discovered a leak from a compressor discharge bottle due to a crack located at the toe of a nozzle to shell weld. The crack was a result of fatigue due to vibration service. Yes
2020-06-02 0 0 A through wall crack was discovered in a nozzle of a stainless steel vessel. The owner believes the crack was a result of fatigue due to vibration. Yes
2020-06-01 0 0 Operations detected a steam leak from a boiler drum manway gasket. The owner believes the leak resulted from misalignment of the manway door which prevented the gasket from sealing as intended. Yes
2020-05-25 0 0 Pinhole leak discovered on compressor piping due to corrosion. Yes
2020-05-25 0 0 Excess water not drained from a process piping system froze causing the flanged connections to leak and permanently deform the piping. The water in the system was allowed to freeze due to a failure of the building's heating system. Yes
2020-05-21 0 0 Pinhole leak discovered in the economizer drain line piping of a recovery boiler. Yes
2020-05-20 0 0 A loss of containment was reported from an internally coated process filter vessel due to internal corrosion. It was determined that cracking in the coating allowed process fluid to contact the vessel wall and cause the corrosion. Yes
2020-05-19 0 0 Pinhole leak discovered on an air cooled heat exchanger due to corrosion. Yes
2020-05-12 0 0 A process heater coil exceeded its design temperatures due to a deviation from operating procedure. No
2020-05-08 0 0 A leak was discovered from a fluidized bed boiler. The leak was determined to be caused by a cracked attachment weld due to fatigue. Yes
2020-05-05 0 0 Operators discovered a process water leak at a flanged connection on a piping system. The leak was determined to have been caused by loosening of the flange bolts due to water hammer. Yes
2020-04-29 0 0 Steam tracing piping failed due to corrosion. Yes
2020-04-23 0 0 Pinhole leak discovered in a 3/4 inch drain nozzle as a result of corrosion. Yes
2020-04-21 0 0 Weld defect in an ammonia refrigeration heat exchanger coil resulted in a release. Yes
2020-04-17 0 0 A steam leak from a weld was discovered in a steam coil associated with an emulsion cooler. The leak is believed to have resulted from a manufacturing defect during welding. Yes
2020-04-15 0 0 Pinhole leak discovered on weld of Boiler External Piping. The pinhole is believed to be the result of a manufacturing defect. Yes
2020-04-15 0 0 Through wall crack discovered on coke drum as a result of cyclic thermal fatigue. Yes
2020-04-14 0 0 Pinhole leak discovered in a 4 inch piping spool containing crude oil caused by erosion. Yes
2020-04-13 0 0 Pipe nipple connected to ball valve failed due to vibration and misalignment causing a release of hydrocarbon and subsequent fire in the compressor building. Yes
2020-04-10 0 0 Failure of steam trap piping due to freezing. The freezing was a result of failed heat tracing. Yes
2020-04-09 0 0 Failed fuel gas pressure regulator vented gas which combusted. No
2020-04-08 0 0 A nitrogen hose burst from overpressure after being inadvertently left connected to a process vessel resulting in a release of sour gas. Yes
2020-04-08 0 0 Loss of containment of hydrocarbon from 2 inch branch connection of process piping. Cause determined to be stress corrosion cracking (SCC). Yes
2020-04-07 0 0 Unintentional release of hydrocarbon due to corroded vent valve on flare header. Yes
2020-04-07 0 0 Corrosion in the oil side of a cooler resulted in release of oil. Yes
2020-04-06 0 0 Corrosion of a pipe nipple in a leach unit resulted in a loss of containment. The material used for the pipe nipple was incorrect and not suitable for the intended service. Yes
2020-04-04 0 0 Ruptured tube on an aerial cooler resulting in a hydrocarbon leak. The tube failure was due to freezing. Yes
2020-04-03 0 0 Release of refirgerant due to fretting of a braided hose against the compressor piping. Yes
2020-04-01 0 0 Through wall crack discovered on 1 inch piping to a pressure gauge on the water makeup system. Water hammer is believed to be the most probable cause. Yes
2020-04-01 0 0 Operators discovered a tube leak on the superheater in a recovery boiler. The owner believes the leak was due to fatigue as a result of repeated movement of the superheater platens. Yes
2020-03-30 0 0 Isolated pressure piping line found frozen as a result of the heat tracing not activated. No loss of containment. No
2020-03-30 0 0 Pinhole leak discovered in process piping due to corrosion. Yes
2020-03-29 0 0 Gasket failure in a bolted connection on a process vessel led to a loss of containment. Yes
2020-03-29 0 0 Valve failure discovered in piping system. The failure is believed to have been caused by fatigue due to excessive vibration. Yes
2020-03-26 0 0 Process piping line failure discovered due to freezing. The freezing was caused by heat tracing failure. Yes
2020-03-25 0 0 Failure of gasket and packing resulted in a loss of containment from the level gauge of a steam flash drum. Yes
2020-03-25 0 0 A suspected leak on the fuel gas supply piping resulted in a fire in the compressor building. Yes
2020-03-23 0 0 Steam piping to deaerator failed due to freezing. The freezing was a result of unusually cold ambient temperatures. Yes
2020-03-20 0 0 A flame was discovered from an inadequately bolted connection to a process vessel. Yes
2020-03-19 0 0 Pinhole leak discovered on an elbow between the steam trap and blowdown tank due to erosion. Yes
2020-03-18 0 0 Tube failure on an air cooled heat exchanger. The failure was a result of mechanical damage due to hydrates in the system. Yes
2020-03-18 0 0 An air cooled heat exchanger overpressured during purging due to the vent line valve being closed. No loss of containment. No
2020-03-18 0 0 Valve stem packing failure resulting in a release of hydrocarbon. Yes
2020-03-17 0 0 Boiler tube leak as a result of under-deposit corrosion. Yes
2020-03-16 3 0 During maintenance on a process piping system, an unintentional release of naphtha and hydrocarbon resulted in a fire. The release was caused by a deviation from maintenance procedures. Yes
2020-03-12 0 0 Failure of drain piping from particle filter due to freezing. The freezing was a result of failure of the heat tracing. No
2020-03-11 0 0 Following maintenance activities, process fluid was reintroduced to the tube side of a heat exchanger, but the shell side was still blocked in, causing pressure build up in the shell side until the outlet valve lost containment at its inlet flange. Yes
2020-03-11 0 0 Pinhole leak discovered on a water drain line from an oil treater. Yes
2020-03-09 0 0 Incorrectly assembled drain tubing on a fuel gas scrubber leaked gas resulting in a fire. Yes
2020-03-09 0 0 A firetube in an oil treater failed due to localized overheating. Yes
2020-03-08 0 0 A process high temperature excursion resulted in loosening of a flanged joint, allowing flammable process fluid to leak resulting in a fire. Yes
2020-03-04 0 0 Pinhole leak discovered in weld on the return elbow of an economizer. Yes
2020-03-04 0 0 Brittle weld failure on a steam line due to incorrect material used in piping modifications which took place in 2006. Yes
2020-03-04 0 0 Compressor package overpressured due to blocked in pressure relief device. No
2020-03-03 0 0 Excess scale caused localized overheating leading to failure on the fire tube of a free water knockout vessel. Yes
2020-03-03 0 0 Ammonia leak reported due to a gasket failure. Yes
2020-03-02 0 0 Instument tubing failure due to fatigue resulted in a fire. Yes
2020-03-02 0 0 Through wall crack discovered on coke drum as a result of cyclic thermal fatigue. Yes
2020-03-02 0 0 Freezing of process fluid in a piping associated with the humidification system of a furnace resulted in a failure and release of humidified ethane. Yes
2020-03-01 0 0 A firetube in an oil treater failed due to localized overheating resulting in a fire. Yes
2020-02-29 0 0 Failure of steam coil due to freezing. The freezing was a result of failed heat tracing. Yes
2020-02-29 0 0 Loss of containment due to damaged lining resulting in corrosion in sulfuric acid piping. Yes
2020-02-28 0 0 Pinhole leak discovered in an economizer tube resulting in a loss of containment. Yes
2020-02-27 0 0 Freezing damage caused to an air cooled heat exchanger due to failed heat tracing. The heat exchanger was damaged beyond repair and will be replaced. No
2020-02-26 0 0 An operator heard a gas leak from the cooler. The compressor was immediately shut down to isolate the leak. After a further inspection by the owner a pin-hole was found on one tube. Yes
2020-02-25 0 0 A failed pipe nipple resulted in an ammonia leak in a refrigeration plant. The pipe nipple is believed to have had an existing defect in the threaded portion resulting in eventual failure. Yes
2020-02-25 0 0 Tube failure in an air cooled heat exchanger resulted in a loss of containment. Flow accelerated corrosion (FAC) is believed to be the probable cause. Yes
2020-02-25 0 0 Failure of a steam line as a result of freezing. In adequate draining of the line allowed the remaining condensate to freeze. Yes
2020-02-24 0 0 Isolation valve passing liquid into steam piping and subsequently freezing causing the pipe to fail. Yes
2020-02-23 0 0 Freezing failure of a piping elbow due to an abandoned dead leg. Yes
2020-02-21 0 0 Pinhole leak discovered in produced water piping. Owner suspects bacterial corrosion to be a likely cause. Yes
2020-02-21 0 0 Through wall crack discovered on well injector steam line check valve, due to freezing. Freezing was a result of the steam isolation valve passing and allowing condensation to form in the check valve. Yes
2020-02-20 0 0 Loss of containment due to pinhole and crack in emulsion inlet piping during warmup and preparation. System had been sitting stagnant for over four years prior to startup. Yes
2020-02-20 0 0 Loss of containment at flange gasket on process vessel due to incorrect bolt tightening. Yes
2020-02-19 0 0 Boiler feed water piping system overpressured. No damage apparent or loss of containment. No
2020-02-18 0 0 Pinhole leak discovered in 90° elbow of drain pipe on a separator. Yes
2020-02-18 0 0 Loose restraint caused contact and wear on tubes resulting in vapor/steam observed from an inspection access door. Yes
2020-02-10 0 0 Loss of containment at weld on process line connecting to a vessel. Owner determined that the loss of containment was a result of a crack caused by fatigue. Yes
2020-02-04 0 0 Freezing of water line due to failed heat tracing. Yes
2020-02-04 0 0 Boiler feed water low flow bypass piping spool developed a leak due to erosion. Yes
2020-02-03 0 0 Several tubes on aerial cooler failed due to freezing while cooler was out of service. Yes
2020-02-02 0 0 Loss of containment due to weld failure at return bend of economizer. Yes
2020-01-30 0 0 A leak was discovered in a high pressure steam piping system. The pipe was found to have a through wall crack as the result of service induced deterioration. Yes
2020-01-30 0 0 Hot spot discovered in a methane reformer furnace tube. No loss of containment, tube repaired. No
2020-01-29 0 0 Freezing at dead leg of condensate return line due to insufficient heat tracing. Yes
2020-01-27 0 0 Loss of containment due to pinhole on catalyst transfer line. Pinhole was determined to be a result of damaged refractory that resulted in localized erosion. Yes
2020-01-24 0 0 Boiler feed water blowdown piping failed due to freezing. The freezing was a result of extreme cold ambient conditions. Yes
2020-01-23 0 0 Pinhole leak in discharge elbow of process vessel due to localized wall thining. Yes
2020-01-22 0 0 Operators observed smoke and steam vapor issuing from a pressure vessel. Upon further inspection, a through wall crack approximately 30 inch long was found at a circumferential weld. Yes
2020-01-22 0 0 A tube bundle was removed from a heat exchanger for inspection and maintenance. The bundle was fouled with a substance that caught upon initial removal. No
2020-01-22 0 0 A pair of air cooled heat exchangers were found to have several split tubes due to freezing. The exchangers were in intermittent service and the owner has determined that they were not isolated correctly. Yes
2020-01-22 0 0 Pipe nipple failure due to a combination of vibration and cold temperatures resulted in a release of propane to atmosphere. Yes
2020-01-21 0 0 Liquids accumulated in a compressed gas cooler the tube and froze causing the tube to fail. Yes
2020-01-21 0 0 Mobile compressor package destroyed due to fire. The owner believes that the cause of the fire may have been as a result of cracked exhaust pipe inside the compressor trailer. Yes
2020-01-21 0 0 Liquids accumulated in a compressed gas cooler the tube and froze causing the tube to fail. Yes
2020-01-20 0 0 Operators discovered a small steam leak under the insulation at a pressure vessel nozzle. It was determined that internal erosion resulted in a breach of the pressure envelope. Yes
2020-01-20 0 0 Freezing of water line from inlet separator due to failed heat tracing. Yes
2020-01-18 0 0 Process upset due to failure of rotating equipment resulted in excess liquid and pressure in the system. The fluid released by the PSV contained excess liquid, which accumulated and ignited. Yes
2020-01-18 0 0 Freezing of steam trap due to failed heat tracing. No
2020-01-18 0 0 Leaking valve due to failed bonnet gasket. The owner suspects a previously undetected freezing event was the most probable cause. Yes
2020-01-18 0 0 Freezing of pressure piping line to flow meter due to failed heat tracing. No
2020-01-16 0 0 Truck hit an oil supply line causing loss of containment. Yes
2020-01-16 1 0 Operator burned with hot water while draining a filter pot. Second degree burns required hospitalization and surgery. Yes
2020-01-16 0 0 Pressure vessel sight glass gasket failed resulting in significant fluid loss. Emergency procedures were initiated to contain leak without further damage. Yes
2020-01-15 0 0 Ammonia leak reported at a load out station. Leak determined be the result of gasket failure at a flanged piping connection. Yes
2020-01-14 0 0 Freezing of slurry inlet line due to failed heat tracing. No
2020-01-12 0 0 Leak on process piping due to wall thinning as a result of unanticipated in-service corrosion. Yes
2020-01-11 0 0 Loss of containment from pinhole at the socket weld connecting a globe valve to steam supply line. The pinhole is believed to be caused by steam erosion. Yes
2020-01-11 0 0 The discharge piping of a safety valve was found to be frozen. The freezing was a result of a small ammount of water unintentionally passing through the safety valve. No
2020-01-10 0 0 Freezing of a froth condensate drain line caused a gasket failure resulting in a loss of containment. The freezing was caused by failure of heat tracing. Yes
2020-01-07 0 0 Through wall crack in air receiver resulted in a loss of containment. The crack appears to have initiated at a saddle support weld and propagated into the shell material, most likely as a result of vibration service. Yes
2020-01-07 0 0 A pinhole leak was discovered on the bridle to inlet separator as a result of a high LEL alarm. The pinhole is believed to be caused by microbial corrosion. Yes
2020-01-06 0 0 A pinhole leak was discovered on a piping system. The pinhole was attributed to corrosion. Yes
2020-01-03 0 0 Nipple at inlet of PSV leaking from a crack in the threads. Crack believed to be a result of vibration due to broken discharge piping support. Yes
2020-01-03 0 0 Unplanned plant shutdown, due to power outage, caused freezing in piping and exchangers. No
2019-12-24 0 0 A steam leak was detected on a blowdown line. The leak is believed to be due to corrosion. Yes
2019-12-24 0 0 A PSV was found to be unintentionally venting, as a result of a failed lifting spring. Yes
2019-12-20 0 0 During inspection, a total of 13 heating boilers were found to be operating without functional low water cut offs. No
2019-12-19 0 0 A compressor safely shut down after Lower Explosive Limits (LEL) were detected in a compressor building. Cracking was discovered at a thread-o-let and is believed to be fatigue induced from vibration of the piping. Yes
2019-12-19 0 0 Operations noticed abnormal level fluctuations in pressure vessels. Investigation found the associated piping to have failed as a result of freezing. Yes
2019-12-18 0 0 After a planned outage, the economizer tubes on a boiler were found to be leaking during start up. The cause of the leaking tubes was found to be freeze damage, as the economizer was not fully drained when the boiler was taken offline. Yes
2019-12-12 0 0 After repair, a valve was put back into service and placed under pressure. A nipple on the valve failed and was propelled through an adjacent wall. Yes
2019-12-11 0 0 A solvent outlet line was found to be frozen, due to failed heat tracing. No
2019-12-07 0 0 The piping on a high temperature separator failed, allowing process fluid to escape and then ignite, causing a fire. The cause of the leak is believed to be internal corrosion/erosion. Yes
2019-12-05 0 0 A plugged exchanger tube was found to be leaking due to a missing plug gasket. Yes
2019-12-04 0 0 A portion of boiler feedwater piping (on the pump suction side) was overpressured, due to an error in operation. No
2019-12-02 0 0 Frozen piping was discovered on the de-superheater water line inlet to a steam turbine generator. No
2019-11-28 0 0 Underground piping was found to be leaking. The cause of the failure was attributed to corrosion under insulation. Yes
2019-11-27 0 0 A pressure piping system experienced 3 separate failures due to freezing. Failure of the electric heat tracing is believed to be the cause. Yes
2019-11-27 0 0 A high pressure steam boiler was found to be leaking feedwater. The cause of the leak was determined to be a failed gasket. Yes
2019-11-26 0 0 A heating boiler was shut down because of a low limit alarm. Upon investigation a number of boiler tubes were found to have failed, most likely due to corrosion from inadequate water treatment. Yes
2019-11-25 0 0 A thermowell on an autoclave failed, allowing ammonia to escape. The failure is believed to be caused by a thinned thermowell wall, brought on by erosion. Yes
2019-11-19 0 0 Ammonia was discovered to be leaking from the top of a plate heat exchanger in a refrigeration plant. It was determined a gasket failure was the cause of the leak. Yes
2019-11-13 0 0 A flange on an isolation valve was found to be leaking during normal operation. The line was isolated and depressurized, and the leak corrected by tightening the bolting on the flange. Yes
2019-11-13 0 0 An air cooled heat exchanger tube failed due to the freezing of residual internal fluid left behind during maintenance work. Yes
2019-11-12 0 0 Condensate piping failed as a result of corrosion in the line. Yes
2019-11-12 0 0 A fire initiated at the top of a coke drum. The cause of the fire was undetermined. No
2019-11-12 0 0 An operator noticed fluid dripping from the channel head of a heat exchanger. Yes
2019-11-12 0 0 A section of 1 inch piping was damaged from rubbing on the compressor structure. Upon investigation a clamp was found to be broken, most likely from vibration. No
2019-11-11 0 0 A pinhole in the piping to an air cooled heat exchanger was discovered. The cause of the pinhole was identified as corrosion. Yes
2019-11-06 0 0 One of the tubes on an aerial cooler froze and ruptured, due to colder than anticipated temperatures. Yes
2019-11-04 0 0 An operator noticed steam leaking from a 4 inch elbow on the outlet piping on a power boiler. Inadequate water treatment is believed to be the root cause. Yes
2019-11-04 0 0 A pinhole leak was found on a water level control valve in a separator building. The pinhole is suspected to have been caused by sand erosion. Yes
2019-10-31 0 0 The feed nozzle of a reactor vessel cracked at the weld, releasing process fluid. It is suspected that improper gusseting led to the cracking. Yes
2019-10-25 0 0 An ammonia gas leak was discovered on a section of 8 inch piping. The root cause is believed to be corrosion under insulation. Yes
2019-10-24 0 0 Two nozzles on two different compressor bottles cracked, allowing process fluid to escape. The cracks were attributed to mechanical failure of the compressor, which caused it to move violently. Yes
2019-10-11 0 0 Steam was found to be leaking at a flanged connection. The flange was found to have pitting on the ring mating surface and the early stages of a steam cut. Yes
2019-10-08 0 0 A 2 inch elbow on the inlet to a blowdown drum was found to be leaking. The cause of failure is believed to be steam/condensate erosion. Yes
2019-10-07 0 0 During rounds, operators found process fluid to be leaking from a pressure vessel. Upon investigation the cause was attributed to corrosion under insulation. Yes
2019-10-03 0 0 Steam was found to be leaking from a flanged connection in a piping system. The line was inspected and a pinhole leak was found in the weld metal connecting the flange to the piping. Yes
2019-10-01 0 0 A pinhole leak was discovered coming from a |||tee||| on the steam side of the low water cut-off column of a power boiler. Yes
2019-10-01 0 0 A power boiler was found to be leaking at the tube-to-tubesheet welds. It's believed this was due to thermal cycling of the boiler. Yes
2019-10-01 0 0 Steam was found to be leaking from the gauge glass column of a power boiler. Vibration is suspected to be the cause of the leak. Yes
2019-10-01 0 0 Steam was found to be leaking from the orifice flange on a boiler feedwater line. Yes
2019-09-30 0 0 A watertube was found to be leaking in a hot water heating boiler. Yes
2019-09-27 0 0 Vibration caused a pressure indicator to unscrew, resulting in a release of gas which in turn ignited. Yes
2019-09-26 0 0 An instrument air line on a hydrogen compressor was found to be leaking. The air line is believed to have cracked from compressor vibration. Yes
2019-09-24 0 0 Cracked welds were discovered on the drain nozzle of a compressor bottle. Yes
2019-09-23 0 0 A process train was overpressured due to a process excursion and blocked-in PSV. Loss of containment occurred due to gasket failure. Yes
2019-09-23 0 0 A through wall crack was discovered at the firetube-to-tubesheet weld of a power boiler. Yes
2019-09-23 0 0 An operator noticed steam venting from the level glass on a power boiler. Upon inspection, the level glass was found to be cracked. Yes
2019-09-20 0 0 A heat exchanger was found to be leaking. Upon investigation, the source of the leak was determined to be a faulty gasket. Yes
2019-09-04 0 0 A 2 inch fuel gas piping line was found to be leaking due to external corrosion. Yes
2019-09-04 0 0 During maintenance, a small fire started in a vessel. The fire is believed to have been caused by iron sulphides (in scale) reacting with oxygen. No
2019-09-03 0 0 Pinhole leak in Thermal Fluid Heater coil caused furnace to trip on an over temperature condition. It was concluded that external abrasion between refractory and the tube caused the leak. Yes
2019-08-27 0 0 Process fluid was found to be leaking from the weep hole of a manway repad on a pressure vessel. Yes
2019-08-22 0 0 A pump seal failure caused an ammonia leak at a food processing facility. Yes
2019-08-06 0 0 An H2S alarm and compressor shutdown was caused by a cracked nipple from the second stage scrubber of the compressor. The cracked nipple was found to be a result of fatigue due to vibration. Yes
2019-08-06 0 0 A pinhole was found on the flange weld of a separator. The internal coating had failed, causing preferential corrosion at that particular location. Yes
2019-08-06 0 0 A through wall crack was discovered on a vessel at a 24 inch nozzle weld. The crack was a result of fatigue due to vibration. Yes
2019-07-30 0 0 During routine operation a leak was detected on a 4||| boiler feedwater line. Upon investigation the piping was found to have been subjected to corrosion under insulation. Yes
2019-07-24 4 0 During a planned outage, workers were removing the blind flange on a waste heat boiler when they were sprayed with hot boiler feedwater. Yes
2019-07-19 0 0 During routine rounds, operators detected a leak in the economizer of a boiler. Investigation revealed a tube had failed, most likely due to fatigue. Yes
2019-07-17 0 0 A compression fitting connection failed due to improper installation, resulting in a loss of process fluid. The fitting was not tightened to the manufacturer's specifications, resulting in insufficient crimping of the tubing. Yes
2019-07-16 0 0 A pin hole leak was found on the condensate dump valve of an inlet separator. Sand erosion is believed to be the cause of the pin hole. Yes
2019-07-15 0 0 The gasket on the inlet nozzle of a pressure vessel failed, allowing process gas to escape. The gas ignited after coming into contact with welding that was being performed in the vicinity. Yes
2019-07-09 0 0 During operation the bellows on a PSV was found to be leaking. Yes
2019-07-09 0 0 During plant start-up a blowdown header overpressured causing water hammer to occur. The water hammer caused a 3/4||| drain valve assembly to break. Yes
2019-07-09 0 0 A crack was found in a connection weld on a coker. The crack is believed to have been caused by a high stress concentration at that location. Yes
2019-07-04 0 0 A loss of containment was reported due to the failure of a 3/4 inch to 1/4 inch swage reducer in a transmitter line. The failure was located in the threaded area of the swage and was determined to be caused by vibration related fatigue. Yes
2019-07-02 1 0 An operator was sprayed in the face with process fluid after turning a valve that was under pressure. No
2019-07-01 0 0 A 2 inch elbow drain off an 8 inch truck load line failed due to external corrosion (elbow in soil). Yes
2019-07-01 0 0 Oil was found leaking into the firetube of a fired treater. The treater was safely shut down, with no further consequences. Yes
2019-06-28 0 0 An elbow in an acid piping system failed due to corrosion. Dew point corrosion is suspected, as Sulphur was known to be in the line causing corrosive acid to form. Yes
2019-06-24 0 0 A gas leak caused Low Explosive Limit (LEL) detectors to shut down a booster compressor unit. The cause of the leak was found to be a through wall crack on the inlet of a safety valve. Yes
2019-06-24 0 0 An operator discovered a leak below a discharge bottle in a compressor building. The leak was due to a cracked drain nipple on the discharge piping. Yes
2019-06-24 0 0 Operators discovered a pinhole leak on an oil emulsion pressure piping line. Pinhole was found be caused by Corrosion Under Insulation (CUI). Yes
2019-06-21 0 0 During startup of a process system, a pressure piping system failed in a dead-leg. Yes
2019-06-19 0 0 Operators discovered a leak underneath a separator. The leak was due a pinhole in the bottom head of the vessel. Yes
2019-06-13 0 0 During planned maintenance activities, materials inside a vessel were exposed to air, resulting in an exothermic reaction. Yes
2019-06-10 0 0 A sandblast tank overpressured causing the manway cover to fail, launching it through a building roof. Upon investigation the safety relief valve was found to be wired shut. Yes
2019-06-04 0 0 An employee failed to completely depressurize a sandblast tank before attempting to open the lid. The lid swung open, denting the vessel. No
2019-06-03 0 0 A piping flange connection was found to be misaligned, allowing process gas to escape. The piping system was shut down without incident. Yes
2019-06-03 0 0 A cracked 1 inch nipple was found leaking process fluid in a piping system, which was shut down without incident. Yes
2019-05-23 0 0 Operators noticed low suction pressure on a compressor. Upon investigation several heat exchanger tubes were found to have failed due to corrosion. Yes
2019-05-21 0 0 A high pressure steam boiler was found leaking water from three failed watertubes. The failure is believed to be due to corrosion of the tubes. Yes
2019-05-13 0 0 Process fluid was found to be leaking from an elbow on a piping system. The elbow failed due to erosion. Yes
2019-05-06 0 0 The firetube in a treater failed, allowing process fluid to escape. The fluid ignited, causing a fire which damaged the treater. Yes
2019-05-02 0 0 A line heater was overfilled, which caused a loss of containment. The process fluid then ignited, causing a fire. Yes
2019-05-01 0 0 An insulated process piping line was found to be leaking gas. Once the insulation was removed, the piping was found to be excessively corroded externally. Yes
2019-05-01 0 0 A pinhole leak was found on the downcomer pipe between a reboiler and an accumulator. The equipment was shut down without incident. Yes
2019-04-25 0 0 The gasket on an emulsion treater failed, allowing process fluid to escape. The facility was shut down and the gasket replaced. Yes
2019-04-17 0 0 The weld on a steam header branch connection failed, allowing steam to escape. Yes
2019-04-17 0 0 Process fluid was found to be leaking from a cracked nipple on a vortex scrubber. Yes
2019-04-17 0 0 Several leaks were found throughout a process piping system. It was found that an unanticipated change to the corrosion inhibitor system resulted in an accelerated corrosion rate. Yes
2019-04-17 0 0 The main gas valve on a high pressure steam valve failed open, allowing gas to accumulate. Upon start-up the accumulated gas ignited, causing an explosion. No
2019-04-16 0 0 A power outage in a process plant caused the flow of thermal oil to stop. Power was restored, creating a water hammer condition which damaged the pressure vessel. Yes
2019-04-15 0 0 A fire heater tube ruptured, causing a fire which damaged surrounding equipment. Yes
2019-04-15 0 0 A waterwall tube in a high pressure hot water boiler developed a leak. Upon investigation, a casing attachment weld was found to have failed. Yes
2019-04-08 0 0 During rounds, an operator noticed gas escaping from a nozzle weld on a third stage suction scrubber. The vessel was safely shut down and repaired. Yes
2019-04-08 0 0 A cracked nipple was found on the bleed line from a compressor to flare. The line was shut down and the nipple repaired. Yes
2019-04-01 0 0 The threaded inlet of a safety valve failed on a compressor skid, allowing gas to escape. Yes
2019-03-29 0 0 Flammable material was inadvertently left in a pressure vessel used for heat treating products at a high temperature. The material ignited, causing a fire. No
2019-03-28 0 0 A leak was discovered at the inlet nozzle of a pressure vessel. The leaking process fluid came into contact with hot piping and ignited, causing a fire. Yes
2019-03-26 0 0 A pinhole leak was discovered in the union connecting the pressure gauge to the steam drum of a high pressure steam boiler. Yes
2019-03-22 0 0 An atmospheric tank overfilled with glycol. The glycol came in contact with a nearby burner, igniting and causing a fire. Yes
2019-03-14 0 0 A gasket leak in an ammonia refrigeration system in the mechanical room at an arena triggered an alarm which resulted in evacuation of the facility. Yes
2019-03-14 0 0 An operator noticed steam coming from a line in a pipe rack. The plant was shut down and upon investigation the leak was determined to be caused by freeze damage to boiler feedwater line. Yes
2019-03-14 0 0 In the process of restarting a primary separation facility that had been out of service for several months, the operator discovered a fuel gas scrubber leaking from freeze damage. Yes
2019-03-13 0 0 Water was left in a shutdown process piping system and froze causing the pipe to split. When the process fluid was re-introduced a leak was discovered. Yes
2019-03-10 0 0 An operator noticed steam leaking from a pipe and on investigation found a 2 inch long crack in the pipe. A passing block valve had allowed condensate to accumulate in an unheated portion of piping the condensate froze resulting in the pipe splitting. Yes
2019-03-09 0 0 Failure of heat tracing resulted in two areas of splitting on a steam line due to freezing. Yes
2019-03-07 0 0 Failure of heat tracing resulted in a drain line valve splitting due to freezing. Yes
2019-03-07 0 0 Cast iron sectional steam heating boiler overheated due to a low water condition and failed. Yes
2019-03-04 0 0 A power boiler safety valve was discharging as a result of an emergency shutdown of the boiler. The piping supports failed resulting in the vent piping being launched causing damage to nearby structures. Fortunately no injuries were sustained. No
2019-03-03 0 0 A leak was detected in a top section of an economizer. The source of the leak was found to be at a tube weld. Yes
2019-03-01 0 0 Steam line developed a leak as a result of corrosion causing a hazardous environment due to steam vapour cloud in the operating area limiting visibility. A engineered pressure enclosure was applied to eliminate the immediate hazard. Yes
2019-03-01 0 0 A gasket leak was discovered at the channel to shell joint of a heat exchanger during startup following a maintenance outage. Yes
2019-03-01 0 0 An operator noticed a small fire on a process gas header. Operations initiated a controlled shutdown without further incident. The source of fuel was process fluid that had leaked from cracked socket welds at drain connections. Yes
2019-02-28 0 0 Abnormal flow induced vibration caused a crack to form in a weld-o-let fillet weld on a piping system. Yes
2019-02-25 0 0 The bodies of two steam-jacketted process valves failed. The damage was cause by condensate that had accumulated in the valve bodies and froze due to failure of the associated steam traps. Yes
2019-02-24 0 0 A leak was found on a steam sampling line. The line was supposed to be out of service, but the isolation valve was passing, allowing condensate to accumulate and freeze in the piping, causing it to rupture. Yes
2019-02-22 0 0 A pipe nipple failed on a sight glass attached to sour gas suction scrubber leading to a release of gas which then ignited. The source of ignition was believed to be from hot engine components in the compressor skid package. Yes
2019-02-21 0 0 Operators discovered a naptha leak in the inlet header piping at a branch connection to the main header. Yes
2019-02-21 0 0 Operators found a naptha leak on the outlet header piping at a branch connection to the main header. Yes
2019-02-18 0 0 Operators found a process line leaking gas. The source of the leak was found to be a crack in the heat affected zone of a reducer. Yes
2019-02-16 0 0 Process fuel leaked from valves and ignited when it came into contact with hot piping below, causing a fire. Yes
2019-02-12 0 0 Product froze in an air cooled heat exchanger tube due to low ambient temperature (-40C) and reduced flow. Freezing resulted in rupture of the tube which was revealed when the ambient temperature increased sufficent to melt the frozen product. Yes
2019-02-12 0 0 A valve bonnet separated from the body releasing product. The failure was the result of freeze damage which occurred after maintenance work had been completed and the system was left without adequate insulation. Yes
2019-02-12 0 0 Operators noticed process fluid dripping out of the insulation on a pressure piping system. Once the insulation was removed a pinhole leak was found in the piping at a weld. The system was shut down for repairs. Yes
2019-02-11 0 0 A tube leak was discovered in a boiler economizer. The boiler was shut down repaired and leak tested. Yes
2019-02-11 0 0 A loss of containment occurred in a process piping system due to a crack at the toe of a weld joining an 8” branch connection to a 14” pipe. Yes
2019-02-11 0 0 Two air cooled heat exchangers sustained extensive freezing damage and were removed from service. Yes
2019-02-10 0 0 Operators detected hydrocarbon leaking from an air cooled heat exchanger. The process was safely shutdown and the equipment isolated and purged for inspection. The leak was caused by freezing. Yes
2019-02-10 0 0 A leak was discovered in a steam condensate line. The heat tracing system had failed resulting in freezing damage and loss of containment. Yes
2019-02-10 0 0 A leak was discovered at a welded connection in a boiler economizer tube. Yes
2019-02-09 0 0 Ammonia leaking from a fitting in the piping system resulted in evacuation of an ice area. Yes
2019-02-06 0 0 Ammonia leak contained to mechanical room at an arena triggered an alarm and resulted in evacuation of the building. The source of the leak was an instrumentation connection near the compressor. Yes
2019-01-26 0 0 Following startup of a compressor unit a small readily contained fire occurred due to leakage at a loose fitting. Yes
2019-01-24 0 0 A leak occurred in a fitting in a process piping system due to impingment of steam injected into the process. Yes
2019-01-24 0 0 Small bore piping on a compressor package developed a through wall crack. Inadequate support and vibrations is believed to be the cause of this failure. Yes
2019-01-22 0 0 A deadleg in a steam condensate piping system failed due to freeze damage as a result of failure of the heat tracing system. Yes
2019-01-21 0 0 An operator detected a hydrogen sulfide leak and shut the plant down. The source of the hydrogen sulfide was later determined to be a pinhole leak in a nozzle on a pressure vessel. Yes
2019-01-21 0 0 A pressure piping system developed two through-wall leaks due to impingement of steam and process materials. Yes
2019-01-19 0 0 Operations personnel detected process gas leakage from a piping system. The plant was safely shut down with no further consequences. Yes
2019-01-18 3 0 A gas leak resulted in an explosion and fire in a compressor skid. Yes
2019-01-15 0 0 A newly designed valve pass plate was installed into a valve and the flow pattern through the pass plate caused an erosive stream to the upper portion of the spool which led to the failure. Yes
2019-01-14 0 0 A steam leak was discoverd on a steam header. Probable cause of tne leak is a fatigue crack at a support weld. Yes
2019-01-14 0 0 Vertical air receiver sustained a crack at the weld to vessel interface, where the compressor base is welded to the head of the vessel. The unit was taken out of service. Yes
2019-01-14 0 0 A tube in an air cooled heat exchanger failed due to freezing, causing the compressor to trip. Yes
2019-01-08 0 0 A pinhole leak was discovered in a high pressure steam condensate line. Yes
2019-01-07 0 0 A leak was discovered at a socket weld in a 1||| high pressure steam line. Yes
2019-01-04 0 0 A remote site was left uninspected for several days in cold weather. Fuel gas to the unit heater was lost. The fuel gas scrubber (a fitting) was frozen and ruptured. Yes
2019-01-04 0 0 During operation of a fired treater, the firetube failed due to localized overheating caused by scale fouling on the process side. Yes
2018-12-28 0 0 A leak was found in a process piping system. Errosion-corrosion is the suspected damage mechanism. Yes
2018-12-17 0 0 Gas leaked from a failed compressor cylinder valve cap O-ring resulting in a fire which damaged a pressure vessel. Yes
2018-12-16 0 0 A leak was discovered in a section of process piping that had been isolated without freezing protection during a shut down. The leak was discovered when the frozen product thawed after start up. Yes
2018-12-16 0 0 A steam leak was discovered at a flanged connection in a piping system soon after startup. The leak seems to have been the result of freezing damage that occurred during the outage. Yes
2018-12-13 0 0 A heat exchanger tube bundle had been removed from the shell for maintenance. Process residue on the tubes ignited resulting in a small fire. No
2018-12-12 0 0 A high pressure steam condensate line developed a leak and was shut down for repair. Yes
2018-12-10 0 0 A gas leak from a sight glass gasket on a suction scrubber resulted in a fire in a compressor skid. Yes
2018-12-08 0 0 The burner control on a process heater failed to shut down, resulting in overheating of the firetube. Yes
2018-12-07 0 0 The expansion joint in the non-code firetube of a line heater failed resulting in loss of heat medium. Yes
2018-12-05 0 0 A firetube flange gasket on a fired treater leaked, releasing process fluid. The leak was the result of over-torquing the flange bolts. Yes
2018-12-05 0 0 Oil was found leaking into the firetube of a fired treater. The treater was immediately safely shut down, with no further consequences. Yes
2018-12-03 0 0 Small bore piping on a compressor suction scrubber failed, releasing gas. The gas ignited causing an explosion and fire. Yes
2018-11-29 0 0 Cold weather caused the contents (mud & water) of a well site separator to freeze, resulting in vessel rupture. The building unit heater was not in operation at the time. Yes
2018-11-29 0 0 Operators discovered a tube leak in an air cooled heat exchanger. The leak was caused by freezing of liquids in the tubes. Yes
2018-11-29 0 0 Low ambient temperature caused the water in the shell side of a lube oil cooler to freeze, resulting in shell rupture. Yes
2018-11-20 0 0 An unexpected accumulation of water in a product transfer pipe froze and caused the pipe to split, releasing product. Yes
2018-11-20 0 0 Operators discovered a process fluid leak in a piping system. Further inspection found two pinholes and significant wall loss due to corrosion in the area of concern. Yes
2018-11-15 0 0 Operators discovered a leak at a flange on a PSV inlet. Further inspection revealed that the flange body had formed a pinhole leak. Yes
2018-11-13 0 0 Plant operator found steam leaking from a steam heat coil. The source of the steam leak was found to be at a socket weld tee fitting. Yes
2018-11-07 0 0 Service fluid leaked from an air cooled heat exchanger as a result of tube wall material loss. Yes
2018-11-01 0 0 Operators found a process gas leak in a piping system. The source of the leak was determined to be a crack in the weld heat affected zone of a reducer. Yes
2018-10-30 0 0 A bellows in a process unit failed due to stress corrosion cracking after a relatively short period of service. Yes
2018-10-30 0 0 A process fluid leak was found under a heat exchanger. The source of the leak was found to be a nozzle that had deteriorated due to corrosion. Yes
2018-10-24 1 1 A wellhead vessel failed. There was one fatality and one person injured. Yes
2018-10-23 0 0 A socket weld cracked in a 2 inch pressure piping system releasing hydrocarbon which was detected by instrumentation and the plant was shut down without further incident. Yes
2018-10-23 0 0 During start-up of a boiler, an unstable fire in the furnace led to a small fuel gas explosion, which resulted in damage to control wiring. No
2018-10-17 0 0 Process leaked from a flanged connection resulting in a fire. The source of the ignition was hot work taking place in the vicinity. Yes
2018-10-17 0 0 Instrument tubing failed resulting in uplanned shutdown of a power plant. Yes
2018-10-16 1 0 During a process upset, a valve was opened to depressurize the system. Gas from the valve ignited in a flash fire, resulting in burns to the operator. Yes
2018-10-15 0 0 A fuel gas supply hose failed in a compressor skid, resulting in a fire. Yes
2018-10-11 0 0 Operators observed a leaking nipple on the discharge side of the compressor piping. The piping was safely isolated without further incident. Yes
2018-10-04 0 0 Failure of a bi-metallic weld in a reformer furnace resulted in leakage of combustible hydrocarbon gas. There was no fire or explosion. Yes
2018-10-03 2 0 A pressure vessel containing pyrophoric material was being prepared for inspection. When exposed to the atmosphere the pyrophoric material ignited causing a fire. No
2018-09-20 0 0 A compression fitting failed in a pressure piping (tubing) system. Yes
2018-08-20 1 0 A 500 gallon propane tank was being cut into pieces by hydraulic shears attached to a track hoe. When the pressure boundary of a tank was breached propane escaped forming a propane vapour cloud which ignited in a flash fire. Yes
2018-08-15 0 0 A leak developed in a 2||| sulfuric acid transfer piping system. The leak resulted in approximately 500 kg of 98% sulfuric acid spilling to the ground. Yes
2018-08-14 0 0 A firetube salt bath heater failed resulted in overheating and failure of the non-code shell. No
2018-08-10 0 0 A piece of 1/2 inch stainless steel tubing connecting the autoclave to the condenser ruptured, releasing hot vapours and hydrogen gas above the auto ignition temperature of the mixture. A fire was the result. Yes
2018-07-24 0 0 A process upset resulted in a lack of flow to a heat exchanger, causing localized overheating and a flange leak. Escaped process fluid ignited, causing a fire that was quickly extinguished by operations. Yes
2018-07-09 0 0 A pumpjack engine back-fired and discharged embers onto combustible insulation which started to burn. Process instrumentation and control equipment was damaged by the fire. No
2018-07-09 0 0 During operation of a fired treater the firetube failed (through-wall pitting), releasing process fluid. The fluid ignited causing a fire. Yes
2018-07-03 0 0 A de-sanding valve in a SAGD facility failed releasing process fluids. Yes
2018-06-29 0 0 Small bore piping (tubing) in high pressure liquid oxygen service failed. A small quantity of liquid oxygen was released prior to safe shut down of the plant. Yes
2018-06-28 0 0 Steam header through wall crack leaking steam. Weld at repad developed crack along the toe of the weld. Yes
2018-06-27 0 0 A leak was discovered between the tube sheet and tube of a glycol boiler. The unit was safely shut down. Yes
2018-06-22 0 0 Company inspectors discovered propane tanks being used as air receivers and had them removed from service. No
2018-06-21 1 0 An operator was hospitalized for treatment of burns caused by steam and hot water released from a steam-out hose connection. No
2018-06-19 1 0 A worker was treated for burns caused by a flash fire which occurred while the worker was using a wash-wand to spray water into an open pressure vessel manway to prepare the vessel for internal inspection. No
2018-06-15 0 0 Process piping was overheated from a high temperature reaction that occurred inside the pipe. No
2018-06-12 0 0 Through wall corrosion of vent piping on a thermal liquid tank allowed thermal liquid to leak. Yes
2018-06-07 1 0 The safety valves on a compressor package were removed for servicing. A process upset ocurred, introducing natural gas into the piping system which leaked from the openings, resulting in a fire. An operator was burned. Yes
2018-06-06 0 0 Hydrocarbon leaked from the weld at a small bore piping branch connection resulting in a fire. Yes
2018-06-05 0 0 Process piping was overheated from a high temperature reaction that occurred inside the pipe. No
2018-05-29 1 0 During the shutdown of a boiler feedwater pump, a hose was used to drain the system. As the drain valve was opened and flow started, the hose whipped due to the discharge reaction and the operator was sprayed by hot water and burned. Yes
2018-05-29 0 0 The shell of a heat exchanger in hot water service was deformed and developed a through-wall crack due to overpressure. Yes
2018-05-18 0 0 Operators discoveed a leak at a nozzle weld on suction scrubber piping. The plant was shut in and depressurized with no consequential damage. Yes
2018-05-08 0 0 During start-up of a power boiler, the steam drum manway gasket failed, releasing steam. Yes
2018-05-03 0 0 Heating boiler furnace explosion resulted in damage to the boiler casing. No
2018-04-30 0 0 Excessive heat input from an electric heater caused the shell of a pressure vessel to fail, releasing process fluid. The fluid ignited, causing a fire. Yes
2018-04-23 1 0 A furnace explosion occurred during start-up of a power boiler. The operator was treated for burns in hospital. No
2018-04-20 0 0 A heating boiler was destroyed by excessive heat from overfiring. No
2018-04-17 0 0 Small bore piping on a compressor suction bottle failed, releasing gas which resulted in a fire. Yes
2018-04-15 0 0 Small bore piping failure on engine fuel gas piping released fuel gas to building resulting in explosion and fire. Yes
2018-04-13 0 0 Hydrocarbon leaked from a heat exchanger shell to channel joint resulting in a fire. Yes
2018-04-12 0 0 Heating boiler furnace explosion resulted in damage to the boiler casing. No
2018-04-09 0 0 Sight glass in a weak acid cation water softener failed, resulting in a loss of containment. Yes
2018-04-07 0 0 An unintentional release of process fluid through a valve ignited, causing a fire. Yes
2018-03-26 0 0 Fire destroyed 2 fuel gas scrubbers and associated piping. No
2018-03-19 0 0 The contents in the depressurizing line from a pig receiver froze resulting in failure of the depressurizing line. Yes
2018-02-12 0 0 During operation of a fired treater the firetube gasket failed, releasing process fluid. The fluid ignited causing a fire. Yes
2018-02-08 0 0 During operation of a fired treater the firetube failed (through-wall crack), releasing process fluid. The fluid ignited causing a fire. Yes
2018-02-02 0 0 The contents in a closed pressure vessel froze resulting in failure of the pressure vessel shell. Yes
2018-01-14 0 0 The contents in a closed pressure vessel froze resulting in failure of the pressure vessel shell. Yes
2018-01-10 0 0 A small bore piping (tubing) leak resulted in a fire in a compressor skid. Yes
2018-01-09 0 0 A process upset resulted in a reaction fire inside a pressure piping system. No
2017-12-21 0 1 Heating boiler exhaust piping failed causing flue gas to accumulate in a building. A worker died from exposure to carbon monoxide. No
2017-12-06 0 0 Hydrocarbon released from flare stack ignited and destroyed fuel gas supply building. Hydrocarbon was from PSV discharging to flare stack. Yes
2017-11-30 0 1 Pressure released from a sandblast hopper caused a worker to fall off the equipment. The worker later died of his injuries. Yes
2017-11-17 0 0 An ammonia leak in an ice arena resulted in the evacuation of the building. There were no injuries reported. Yes
2017-11-16 0 0 Hydrocarbon leaked from a valve packing gland in a process facility. The leak was detected, and activated the plant alarm. Yes
2017-11-01 0 0 A hose used to transfer liquid hydrocarbon was overpressurized. Yes
2017-10-19 0 0 Hydrocarbon leaked from a threaded plug in small bore piping vent. The leaked fluid caught fire. No
2017-09-22 0 0 A tube leak resulted in a smelt water reaction in a recovery boiler furnace. Yes
2017-09-12 1 0 Buried piping was damaged by construction activities, causing a hydrocarbon leak that resulted in an explosion. Yes
2017-08-28 0 0 A gas leak in small bore braided hose resulted in a fire at a compressor station. Yes
2017-08-15 0 0 Freeze damage was discovered during seasonal maintenance of out-of-service pressure piping. Yes
2017-08-02 0 0 A flange gasket leaked process fluid from a treater vessel resulting in a fire. Yes
2017-07-13 0 0 A hydrate plug formed in a piping system. The hydrate plug broke free and impacted a valve downstream, causing mechanical damage which resulted in a leak. Yes
2017-07-12 0 0 Gas leaked from a flanged joint resulting in a fire. The fire was extinguished and there was no consequential damage. Yes
2017-07-11 0 0 Lightning strike caused a fire at a separator building, damaging the pressure equipment inside. No
2017-06-20 0 0 Through wall corrosion on the drain line of a fuel gas scrubber allowed process fluid to escape. Operators discovered the leak and initated an emergency shut down of the unit, preventing a fire from occuring. Yes
2017-06-16 0 0 The threaded bonnet separated from the body of a pressure relief valve due to forces resulting from the discharge piping system freezing. Yes
2017-06-16 0 0 During operation of a fired treater the firetube failed, releasing process fluid. The fluid ignited causing a fire Yes
2017-05-31 2 0 A nonmetallic pipe failed during operation, releasing acid which contacted two operators. Yes
2017-05-22 0 0 A procedural error in drawing process fluid from a system resulted in a small fire. No
2017-05-17 0 0 The gasket failed in a treater firetube flange releasing oil which ignited resulting in fire damage to the treater, pop tank and building. Yes
2017-05-05 0 0 During maintenance welding of structural steel, combustible material was ignited. The resulting fire damaged pressure vessels and piping. Yes
2017-04-04 0 0 During operation of a fired treater, the firetube failed due to localized overheating caused by scale fouling on the process side. Process fluid leaked into the firetube, causing a fire. Yes
2017-03-31 0 0 A leak at a weld released process fluid, which auto-ignited resulting in a small, localized fire, with no collateral damage. Yes
2017-03-14 1 0 A process fluid leak in created a vapour cloud which ignited and caused a fire. One worker was treated for burns. Yes
2017-03-13 2 0 During maintenance of an ammonia system a worker inadvertantly caused an isolation valve to partially open, releasing ammonia. Two workers were injured as a result of contact with the released ammonia. Yes
2017-02-19 0 0 A through wall crack in a pressure vessel resulted in a loss of containment and fire. Yes
2017-02-12 0 0 Firetube boiler furnace tube overheated and failed due to waterside fouling. Yes
2017-02-12 0 0 During manual desanding of a separator vessel, the drain line became plugged and failed. Yes
2017-01-26 0 0 During the hydrostatic pressure test of a pressure piping system, a valve failed in the test assembly used to connect the piping to the pressure source. Yes
2017-01-24 0 0 A process heater overheated and failed during startup. Yes
2017-01-13 0 0 A flash fire occurred in a compressor building. No
2017-01-12 0 0 A gasket failed on a sour service oil treater. Yes
2017-01-04 0 0 A fire occurred during the start-up of a compressor. No
2016-12-14 0 0 Fluid leaked into off line compressor discharge piping and froze. Compressor cylinder was damaged by excessive pressure when compressor was started. No
2016-12-10 0 0 Pin-hole leak in branch connection weld to pressure vessel nozzle released small amount of hyrdrocarbon resulting in a fire. The nozzle had corrosion resistant overlay, but the the branch connection did not. Yes
2016-11-24 0 0 A control system malfunctioned releasing process fluids. The fluids ignited causing a fire. No
2016-11-15 0 0 A fire in a compressor skid resulted in damage to pressure piping. No
2016-09-09 0 0 A flange gasket in a pressure piping system containing heavy oil failed resulting in a fire. Yes
2016-09-08 0 0 A furnace explosion occurred during start-up of a gas fired heating boiler. No
2016-08-12 0 0 An engine fire damaged a fuel gas scrubber and the associated piping system. No
2016-06-22 0 0 Process fouling in a heat exchanger resulted in localized overheating and loss of containment. Yes
2016-06-21 0 0 Hydrocarbons were released due to operational error, resulting in a fire that caused no damage to the pressure equipment. No
2016-06-14 0 0 Pressure vessels and piping were damaged by fire at natural gas wellsite. The fire is suspected to have been initiated by a lightning strike. No
2016-06-09 1 0 An operator recieved first degree burns to hands and neck from blowback during light-off of fired treater burner. No
2016-05-18 0 0 Liquid hydrocarbon leaked in a pumphouse, causing a fire that damaged pressure piping. Yes
2016-05-05 0 0 A fibreglass pop tank caught fire at an unmanned wellhead facility. Pressure vessels and associated piping were damaged from heat exposure. No
2016-04-26 1 0 An operator was draining a hot water storage tank. The threaded drain pipe swung due to reaction forces. The operator was burned by hot water and steam. No
2016-03-02 0 0 Oil emulsion leaked into a fire tube in an idle free water knock out vessel. The oil was eventually ignited by the burner pilot resulting in a fire which damaged auxilliary equipment. No
2016-02-12 0 0 During operation of a fired treater, a crack developed in the firetube releasing process fluid. The fluid ignited causing a fire. Yes
2016-02-11 0 0 Accumulation of condensate in an isolated section of steam piping froze and caused the pipe to rupture. Yes
2016-02-10 0 0 A hydrocarbon leak from a piping system in a processing facility resulted in a small fire. The plant was shut down safely with no further damage. Yes
2016-02-05 0 0 During normal operation, process piping failed due to service induced deterioration. Corrosion under insulation was a factor. Yes
2016-02-04 0 0 Unattended portable fired heater used to thaw frozen pressure equipment in a skid building ignited a tarp causing a fire. No
2016-01-22 0 0 During normal operation a steam heating boiler overheated due to low water level. Yes
2016-01-18 0 0 A through wall crack developed in process piping during operation. Yes
2016-01-15 0 2 Explosion in hydrocracker unit. Two workers killed. Yes
2016-01-05 1 0 Sight glass failure on a process vessel. Operator received burns to hands from hot liquid. Yes
2016-01-04 0 0 A boiler blowdown line froze and ruptured due to inadequate heat tracing. Yes
2016-01-04 0 1 A 20-pound propane bottle that had been filled with water and was being heated with a propane torch, to produce steam, when it failed catastrophically. One man was killed. Yes
2015-12-28 0 0 A header in an air cooled steam condenser ruptured due to freezing. Yes
2015-12-28 0 0 A compressor engine fire caused damage to a pressure vessel and associated piping. No
2015-12-15 1 0 A fitting failed during start-up of a compressor following routine maintenance. A worker was struck and injured by debris. Yes
2015-12-09 0 0 Fire caused by a flange leak during start-up of a heat exchanger in hydrocarbon service. Yes
2015-12-08 1 1 A man-lift device struck a pipe in low pressure liquid ammonia service. The pipe broke releasing ammonia, resulting in one fatality. Yes
2015-12-07 0 0 A through wall crack developed in process piping during operation. Yes
2015-12-03 3 0 During maintenance a valve was removed from a propane tank, releasing propane gas. The propane gas ignited, causing an explosion. No
2015-12-01 0 0 Fire caused by service-induced deterioration of a tube in a fired process heater during operation. Yes
2015-11-10 0 0 A flange in high pressure steam service failed during start-up of the steam plant. Yes
2015-10-31 0 0 Process piping failed due to freezing, as a result of inadequate heat tracing. Escaping hydrogen ignited causing a fire. Yes
2015-10-22 0 0 Due to an improper air/gas ratio, a furnace explosion occurred in a boiler during operation. No
2015-10-21 1 0 During maintenance of a heating plant, a safety valve unexpectedly relieved, releasing steam in the direction of a worker. No
2015-10-15 0 0 During start-up, a process plant was overpressured due to an unexpected blockage in the piping. No
2015-10-08 0 0 During maintenance on a refrigeration system in an ice rink, ammonia was inadvertantly released. Yes
2015-09-17 0 0 Mechanical joint leak in a fired process heater. Yes
2015-09-14 0 0 Unanticipated flow impingement caused abrasive wear to a pressure vessel, resulting in a pinhole failure. Yes
2015-09-04 0 0 A mechanical joint failed releasing process fluid, which ignited and caused a fire. Yes
2015-08-30 0 0 A threaded connection failed on compressor pressure piping. The failure released gas which ignited in the compressor building. Yes
2015-08-29 0 0 During a planned shutdown, a heat exchanger gasket failed releasing process fluid. The fluid ignited, causing a fire. Yes
2015-08-29 0 0 Due to external corrosion, a process piping line ruptured releasing process fluid. The fluid ignited, causing a fire. Yes
2015-07-29 0 0 A pressure vessel overheated during a temperature excursion, resulting in permanent deformation of a section of the shell. No
2015-07-07 0 0 During start-up of a new facility, a vessel was over-pressurized as a result of improperly operating controls and relief device. No
2015-06-25 0 0 Due to an improper air/gas ratio, a furnace explosion occurred in a package boiler during start-up. No
2015-06-24 1 0 An operator was burned by hot process fluids while preparing a vessel for inspection. Yes
2015-06-24 0 0 A lightning strike caused a fire in an atmoshperic storage tank. The fire damaged nearby pressure equipment. No
2015-06-23 0 0 During operation of a fired heater, a crack developed in the firetube releasing process fluid. The fluid ignited causing a fire. Yes
2015-06-16 0 0 During operation of a fired treater, a crack developed in the firetube releasing process fluid. The fluid ignited causing a fire. Yes
2015-06-06 0 0 A pressure vessel containing pyrophoric material was being prepared for inspection. When exposed to the atmosphere the pyrophoric material ignited causing a fire. No
2015-06-01 0 0 During operation of a fired treater, a crack developed in the firetube releasing process fluid. The fluid ignited causing a fire. Yes
2015-05-20 0 0 During maintenance of an ammonia refrigeration system, ammonia was inadvertantly released from the system. Yes
2015-05-12 0 0 During upset conditions, a sulfur condenser tube was overheated and ruptured, releasing boiler feedwater. Yes
2015-05-08 0 0 Due to operational upsets, a pressure vessel was damaged due to overheating. No
2015-05-02 1 0 An operator was burned by process fluid while performing maintenance on a filter vessel. Yes
2015-04-13 0 0 A heat exchanger leaked due to a crack on a welded seam. Natural gas was released, but there was no fire. Yes
2015-04-09 0 0 Due to service induced deterioration, a heat exchanger tube failed at the tube-to-tubesheet connection, releasing process fluid. Yes
2015-03-20 0 0 During start-up a pressure vessel was overpressured due to improper valve operation. No
2015-03-18 0 0 During start-up of a power boiler, localized overheating resulted in the failure of several superheater tubes. Yes
2015-03-17 0 0 An air hose connection separated on the discharge side of a compressor. The escaping air pressure and residual debris struck two workers. Yes
2015-01-28 0 0 Due to an improper air/gas ratio, a furnace explosion occurred in a firetube boiler during start-up. No
2015-01-15 0 0 A pressure vessel and associated piping were overpressured as a result of process fluid freezing in a blocked-in line. No
2015-01-12 0 0 A safety relief valve failed at the inlet threads due to fatigue caused by vibration. Yes
2015-01-01 0 0 During operation of a fired treater, the firetube ruptured releasing process fluid. The fluid ignited causing a fire. Yes

This is a summary of pressure equipment unsafe conditions, accidents and fires that have been reported to and investigated by ABSA. This information is provided to make people aware of the general nature of pressure equipment unsafe conditions, accidents and fires. The intent is to heighten the awareness of the general public to the hazards of pressure equipment in an effort to prevent injury.

Note: “Loss of Containment” as used in this report refers to the loss of any amount of process fluid from the pressure equipment.