Safety Alert
Uncontrolled Descent of Crane Boom
Uncontrolled Descent of Crane Boom
- IADC
- Safety Alert
- IADC Alert 20-07
- Crane and RiggingLifting Operations
- Dropped objectsMechanical failure
- Cargo transferLifting operations
- CraneWire rope
- Upstream oil and gas
- Offshore installation
Summary
A crane boom wire parted while casing was being offloaded from a supply vessel to a rig’s cantilever deck. The main deck crane was operating on a single whip line. The load and boom fell onto stacked casing; no personal injuries were reported.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Cargo transfer; cargo handling.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Crane; cranes.
Classifications: Wire rope; steel wire rope.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.
IADC Alert 20-07. Themes: crane and rigging, lifting operations.