Safety Flash
Near miss: Diver reports tight gas
Near miss: Diver reports tight gas
- IMCA
- Safety Flash
- IMCA SF 05/19
- Control of WorkDivingHuman Factors
- Human factors
- Diving operations
- Diving bellValve
- Management of changeOperating and work proceduresPre-use checksSafety communication
- Subsea
Summary
A diver switched to bailout and returned to the submersible diving chamber after experiencing restricted gas supply. Internal valves secured during a delay had not been restored following completed checks. The flash highlights checklist timing, recording deviations and repeating valve checks before operations recommence, alongside formal review of habitual procedural changes.
Classifications: Human factors; human performance; ergonomics.
Classifications: Diving operations; diving; commercial diving.
Classifications: Diving bell; closed bell; wet bell.
Classifications: Valve; valves.
Classifications: Management of change; MOC; change management.
Classifications: Operating and work procedures.
Classifications: Pre-use checks; pre-use inspection.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Subsea; underwater worksite.
Summary
A diver experienced restricted gas supply after internal valves were secured and not restored before lockout from the diving chamber.
IMCA SF 05/19. Themes: control of work, diving, human factors.