Safety Flash
Diving bell TUP O-ring seal damage
Diving bell TUP O-ring seal damage
- IMCA
- Safety Flash
- IMCA SF 09/17
- DivingInspection and MaintenancePressure Systems
- Mechanical failurePressure systems
- Inspection and maintenanceSaturation diving
- Diving bell
- Operating and work proceduresPre-use checks
- Marine industry
- Vessel
Summary
A displaced O-ring obstructed diving bell mating on a DSV and was damaged during repeated clamp closures. Trunking pressurisation revealed leakage, prompting inspection and seal replacement. The flash identifies incomplete inspection and difficult access, recommending flange and seal checks between every bell run and describing improved access and inspection recording.
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: Operating and work procedures.
Classifications: Pre-use checks; pre-use inspection.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
During the locking on of the diving bell to the saturation system on a DSV, difficulty was encountered in closing the locking clamp.
IMCA SF 09/17. Themes: diving, inspection and maintenance, pressure systems.