Safety Flash
Near miss: lift bag released unintentionally from crane hook
Near miss: lift bag released unintentionally from crane hook
- IMCA
- Safety Flash
- IMCA SF 18/24
- Crane and RiggingDivingLifting Operations
- Dropped objectsLoss of station keeping
- Dynamic positioningLifting operationsRiggingSaturation diving
- CraneLifting accessories
- Positive retention and reliable securingPre-use checksRisk assessment
- Marine industry
- SubseaVessel
Summary
A lift bag detached from a crane hook at the splash-zone during a saturation dive and floated near a vessel operating in DP mode. Incorrect folding and attachment allowed buoyancy to defeat the self-locking latch. No harm occurred. The flash recommends risk assessment, rigging checks and a tool basket.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Loss of station keeping; drive-off; drift-off.
Classifications: Dynamic positioning; DP; DP operations.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Rigging; slinging.
Classifications: Saturation diving; sat diving.
Classifications: Crane; cranes.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Positive retention and reliable securing.
Classifications: Pre-use checks; pre-use inspection.
Classifications: Risk assessment; hazard assessment.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Subsea; underwater worksite.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
Lift bag came free from the crane hook as the vessel was in DP mode where there was the potential for damage to the vessel.
IMCA SF 18/24. Themes: crane and rigging, diving, lifting operations.