Safety Flash
Failure of chamber door spindles and seals
Failure of chamber door spindles and seals
- IMCA
- Safety Flash
- IMCA SF 07/07
- DivingInspection and Maintenance
- Mechanical failurePressure systems
- Inspection and maintenanceSaturation diving
- Pressure vessel
- Preventive maintenance
- Marine industry
- Vessel
Summary
Two successive leaks at chamber-door spindle seals interrupted pressurisation on a diving support vessel following maintenance. Inspection found almost 70% of spindles unserviceable through sealing-area surface damage or bent shafts. The flash recommends identifying spindles and seals as critical components and including their inspection and replacement in planned maintenance.
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: Pressure vessel; pressure vessels.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
A Member’s diving support vessel (DSV) had recently completed a period of maintenance with some minor work on the saturation chamber system, which included door hinge realignment.
IMCA SF 07/07. Themes: diving, inspection and maintenance.