Safety Flash
Failure during lift bag operations
Failure during lift bag operations
- IMCA
- Safety Flash
- IMCA SF 11/02
- Crane and RiggingDivingDropped ObjectsLifting Operations
- Dropped objects
- Lifting operationsRiggingSaturation diving
- Positive retention and reliable securing
- Subsea
Summary
A near-miss involved saturation divers moving a 600 kg blind flange with a nominally 500 kg lift bag. The bag and load rose uncontrolled, then the load fell back to the seabed without injury. The flash highlights capacity discrepancies and recommends seabed-anchored inverter lines to restrain and tip bags.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Rigging; slinging.
Classifications: Saturation diving; sat diving.
Classifications: Positive retention and reliable securing.
Classifications: Subsea; underwater worksite.
Summary
An overloaded lift bag broke free during subsea handling, sending a flange toward the surface before the load fell back.
IMCA SF 11/02. Themes: crane and rigging, diving, dropped objects, lifting operations.