Safety Flash
Bell re-claim failure resulting in minor injury
Bell re-claim failure resulting in minor injury
- IMCA
- Safety Flash
- IMCA SF 13/14
- DivingInspection and MaintenanceMachinery and EquipmentPressure Systems
- Line of fireMechanical failurePressure systems
- Inspection and maintenanceSaturation diving
- Diving bellValve
- Independent audit and verificationPreventive maintenance
- Subsea
Summary
A saturation-diving incident at 110 msw injured a bellman when a reclaim-line water trap ruptured. An inverted check valve allowed retained exhaust gas to pressurise the trap following a compressor solenoid failure. The flash examines refurbishment errors, filter-change maintenance and inspections that missed the incorrectly fitted component.
Classifications: Line of fire; struck-by hazards.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Saturation diving; sat diving.
Classifications: Diving bell; closed bell; wet bell.
Classifications: Valve; valves.
Classifications: Independent audit and verification.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Subsea; underwater worksite.
Summary
A pressurised water trap ruptured inside a diving bell after an incorrectly installed check valve allowed stored gas to enter the line.
IMCA SF 13/14. Themes: diving, inspection and maintenance, machinery and equipment, pressure systems.