Investigation Report
Hot Sewage Burns During Marine Sanitation Pump Troubleshooting
11-07-2015 21:00 G15607 GC 743 LTA (>3 days) / Required Evacuation/ Other Injury/ Equipment Failure/ Human Error
- BSEE
- Investigation Report
- Unknown
- Line of fireLoss of containmentMechanical failurePressure systems
- Inspection and maintenance
- Process pipework and pipelinesPumps
- Operating and work proceduresPressure relief
- Upstream oil and gas
- Vessel
Summary
Investigation of burns sustained while troubleshooting a marine sanitation pump aboard Seadrill West Auriga. Scale blocked discharge piping, causing overpressure and sight-glass failure that released hot sewage. Findings address absent overpressure protection, hazardous viewing position and missing troubleshooting procedures. Medical evacuation was delayed by weather.
Classifications: Line of fire; struck-by hazards.
Classifications: Loss of containment; containment loss.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Process pipework and pipelines; process piping.
Classifications: Pumps.
Classifications: Operating and work procedures.
Classifications: Pressure relief; overpressure protection.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Vessel; aboard ship; onboard vessel.