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CSB Investigation Report No. 2005-04-I-TX 2005 Safety Safety Environmental Environmental
BP Texas City Refinery Explosion and Fire
BP Texas City Refinery, Texas
Related equipment → Storage tank (storage_tank)Related equipment → Distillation column (distillation_column)
15Fatalities
180Injuries
ExplosionMechanism code OTH
⌗Failure Mode · ISO 14224 Mapping
Damage mechanism (recorded in KB)
ExplosionOTH
ISO functional code (as recorded)
ISO 14224:2016 functional failure code
OTH · Other
ISO OTH — Other.
1What Happened

Isomerization unit floating-roof tank (FTE) overflow -> flammable vapor cloud -> explosion

2Root Cause

Failed level indicator + inadequate overflow protection + deficient management of change

3Reliability Lessons (from investigation root cause)
  • Failed level indicator
  • inadequate overflow protection
  • deficient management of change
4Associated Failure Mechanisms (Keywords)
floating roof floating-roof tank overflow seal leakage explosion weld crack corrosion
About the Failure-Mode Code (click to expand)

The recorded code OTH is an ISO 14224:2016 functional failure code (describes what the equipment failed to do). The damage mechanism (how it failed) is shown in the Mapping block above. The two are distinct dimensions in ISO 14224.

5Evidence Source (transparent)
Authority：U.S. Chemical Safety and Hazard Investigation Board (CSB)
Official Report：www.csb.gov ↗
Data Verification：verified_url_csb_sitemap
↗Related Failure Modes · Traceability
Bottom Plate Perforation bottom_plate_perforationBottom Weld Crack bottom_weld_crackUnder-deposit Corrosion under_deposit_corrosionShell Thinning shell_thinningWeld Crack weld_crackCorrosion Under Insulation (CUI) cuiRoof Corrosion roof_corrosionFloating Roof Sticking floating_roof_stickingSeal Leak -> VOC Emission seal_leakDifferential Settlement differential_settlementConcrete Crack concrete_crackPad Failure pad_failureFreezing/Sticking freezing_stickingSeat Corrosion seat_corrosionElement Plugging element_pluggingElement Corrosion element_corrosionN2 Supply Loss n2_supply_lossControl Valve Failure control_valve_failureAntenna Fouling antenna_foulingElectronics Failure electronics_failureWire Sticking wire_stickingDisplacer Perforation displacer_perforationContact Corrosion contact_corrosionFloat Sticking float_stickingInternal Corrosion Thinning internal_corrosion_thinningStress Corrosion Cracking (SCC) sccWeld Crack weld_crackHydrogen-Induced Cracking / Blistering (HIC/HB) hic_hbCorrosion corrosionFireproofing Loss fireproofing_lossFlange Leak flange_leakNozzle Weld Crack nozzle_weld_crackTray Corrosion tray_corrosionValve Sticking valve_stickingDowncomer Plugging downcomer_pluggingFlooding floodingPacking Degradation packing_degradationPacking Fouling packing_foulingDistributor Plugging distributor_pluggingTube Fouling tube_foulingTube Leak tube_leakTube Fouling tube_fouling_2Tube Perforation tube_perforationImpulse Line Blockage impulse_line_blockageSensor Drift sensor_driftTrim Erosion trim_erosionPositioner Failure positioner_failure氨应力腐蚀开裂 MECH-AMMONIA-SCC酸性水腐蚀 MECH-SOUR-WATER高温硫化氢/氢腐蚀 MECH-HT-H2S硫化腐蚀 MECH-SULFIDATION冲蚀/冲刷腐蚀 MECH-EROSION硫氢化铵腐蚀 MECH-ABS大气腐蚀 MECH-ATMOS保温层下腐蚀 MECH-CUI腐蚀疲劳 MECH-CORR-FATIGUE电偶腐蚀 MECH-GALVANIC
Report No. 2005-04-I-TX · Data from CSB public investigation conclusions, compiled by Reliability AI, for reliability demonstration purposes only. This case is derived from public incident investigation reports for learning purposes only. AIM does not endorse or guarantee its accuracy.