Safety Flash
Sudden and uncontrollable move of A&R head
Sudden and uncontrollable move of A&R head
- IMCA
- Safety Flash
- IMCA SF 07/23
- IsolationLine of FirePressure Systems
- Line of firePressure systemsRisk management
- Lifting operations
- Process pipework and pipelines
- Positive retention and reliable securingRisk assessment
- Marine industry
- Vessel
Summary
During pipeline abandonment preparations aboard a vessel, an abandonment and recovery head was ejected from the pipe end while being aligned for welding. Crane support prevented it dropping, and nobody was injured. The flash identifies absent vent holes, unrecognised residual-water effects and unnecessary personnel exposure, encouraging reassessment of specifications and risks.
Classifications: Line of fire; struck-by hazards.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Risk management; risk evaluation.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Process pipework and pipelines; process piping.
Classifications: Positive retention and reliable securing.
Classifications: Risk assessment; hazard assessment.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
Abandonment and Recovery (A&R) head was being prepared for welding at the end of offshore pipeline installation operations. As final adjustments were being made, the A&R head assembly was moved upwards and then ejected in an uncontrolled manner from the pipe end.
IMCA SF 07/23. Themes: isolation, line of fire, pressure systems.