Safety Flash
Damage to chain hoist subsea
Damage to chain hoist subsea
- IMCA
- Safety Flash
- IMCA SF 23/22
- DivingLifting OperationsMachinery and Equipment
- Crushing and pinch pointsMechanical failure
- Diving operationsLifting operationsRigging
- Operating and work proceduresSafety communication
Summary
During subsea clamp installation by divers, a centralising chain block became trapped at the clamp hinge, damaging a chain link but not the clamp. Worksite checks were insufficiently frequent, and procedures omitted entanglement and snagging prompts. The member revised procedures and raised awareness of chain-hoist snagging hazards.
Classifications: Crushing and pinch points; crush hazards; pinch points.
Classifications: Mechanical failure; equipment failure.
Classifications: Diving operations; diving; commercial diving.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Rigging; slinging.
Classifications: Operating and work procedures.
Classifications: Safety communication; toolbox talk; toolbox talks.
Summary
A chain hoist was damaged during subsea clamp operations because procedures did not adequately address entanglement and snagging hazards.
IMCA SF 23/22. Themes: diving, lifting operations, machinery and equipment.