Safety Flash
Bailout manifold failure
Bailout manifold failure
- IMCA
- Safety Flash
- IMCA SF 02/22
- CorrosionDivingPressure Systems
- CorrosionMechanical failurePressure systems
- Diving operationsInspection and maintenance
- Diving bellGas cylinder
- Positive retention and reliable securingPreventive maintenanceStop-work authority
- Marine industry
Summary
A diving bell bailout manifold failed under pressure with no divers inside. Forensic testing supported likely lateral loading from inappropriate securing, followed by stress corrosion cracking and internal corrosion. The flash describes suspended diving, bailout inspections, replacement with more robust assemblies and familiarity with planned maintenance tasks.
Classifications: Corrosion; corrosion damage.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Diving operations; diving; commercial diving.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Diving bell; closed bell; wet bell.
Classifications: Gas cylinder; compressed gas bottle; gas cylinders.
Classifications: Positive retention and reliable securing.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Stop-work authority; stop work; stop-work intervention.
Classifications: Marine industry; shipping industry; maritime sector.
Summary
A diving bell bailout manifold failed under pressure.
IMCA SF 02/22. Themes: corrosion, diving, pressure systems.