Safety Flash
Lifting wire strop failure during air bag lift
Lifting wire strop failure during air bag lift
- IMCA
- Safety Flash
- IMCA SF 10/06
- Crane and RiggingDivingLifting OperationsLine of Fire
- Line of fireMechanical failure
- Diving operationsLifting operationsRigging
- Diver umbilicalLifting accessoriesWire rope
- Operating and work proceduresOperational supervisionPre-use checksSafety communication
- Marine industry
- Subsea
Summary
A wire strop parted during inflation of an air lift bag used to align subsea flanges. The inverter line also failed, allowing the bag to surface. The diver remained clear of its ascent path. Reported corrective measures included rigging inspection, certification checks, pre-use checks and toolbox discussions.
Classifications: Line of fire; struck-by hazards.
Classifications: Mechanical failure; equipment failure.
Classifications: Diving operations; diving; commercial diving.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Rigging; slinging.
Classifications: Diver umbilical; diving umbilical.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Wire rope; steel wire rope.
Classifications: Operating and work procedures.
Classifications: Operational supervision.
Classifications: Pre-use checks; pre-use inspection.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Subsea; underwater worksite.
Summary
An uncertified wire strop parted while a diver inflated an air lift bag, narrowly avoiding entanglement and prompting tighter rigging checks.
IMCA SF 10/06. Themes: crane and rigging, diving, lifting operations, line of fire.