Safety Flash
Near-miss during subsea cutting operations
Near-miss during subsea cutting operations
- IMCA
- Safety Flash
- IMCA SF 04/12
- DivingHot Work and FirePressure Systems
- FirePressure systems
- Diving operationsHot work
- Gas cylinderHoseValve
- Operating and work procedures
- Subsea
Summary
A flashback during subsea gas flame cutting with a PVL torch ruptured an oxygen hose underwater and on deck, causing a small fire without injuries. Investigation identified missing flashback arrestors, incorrect bottle-change procedures and an improperly closed torch valve. Changes included arrestors, non-return valves, gas quads and revised instructions.
Classifications: Fire; fire safety.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Diving operations; diving; commercial diving.
Classifications: Hot work; welding and cutting.
Classifications: Gas cylinder; compressed gas bottle; gas cylinders.
Classifications: Hose; flexible hose.
Classifications: Valve; valves.
Classifications: Operating and work procedures.
Classifications: Subsea; underwater worksite.
Summary
A flashback during subsea gas cutting burst hoses and caused a small fire after an oxygen bottle change.
IMCA SF 04/12. Themes: diving, hot work and fire, pressure systems.