Safety Flash
Near-miss: Hyperbaric fire extinguisher incident
Near-miss: Hyperbaric fire extinguisher incident
- IMCA
- Safety Flash
- IMCA SF 03/07
- DivingInspection and MaintenancePressure Systems
- Line of fireMechanical failurePressure systems
- Inspection and maintenance
- Gas cylinderValve
- Functional testingPressure reliefPreventive maintenance
- Onshore facility
Summary
A hyperbaric extinguisher’s safety valve assembly blew off during six-monthly functional checks at a shore-base workshop, without injury. A faulty first-stage regulator and non-functioning burst disc were identified. Actions included phasing out twin-cylinder extinguishers, annual burst-disc replacement and improved equipment traceability.
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: Gas cylinder; compressed gas bottle; gas cylinders.
Classifications: Valve; valves.
Classifications: Functional testing; function test.
Classifications: Pressure relief; overpressure protection.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Onshore facility; onshore plant.
Summary
IMCA has been asked to publicise the attached HSE alert HSE001-2007 issued by Divex regarding problems with valve seat retainers.
IMCA SF 03/07. Themes: diving, inspection and maintenance, pressure systems.