Investigation Report
Crane Boom Collapsed During Grating Transfer
05-12-2023 1605 G02280 SM 130 B Crane, Incident > 25K
- BSEE
- Investigation Report
- Unknown
- Dropped objectsMaterial fatigueMechanical failure
- Cargo transferInspection and maintenanceLifting operations
- CraneWire rope
- Operating and work proceduresPreventive maintenance
- Upstream oil and gas
- Offshore installation
Summary
BSEE investigates a crane boom collapse during grating transfer at South Marsh Island 130 B, with no personnel injuries. Cable break testing identified fatigue from repeated cycling through bridle sheaves. The report discusses inadequate wire-rope evaluations, poor lubricant penetration and revised inspection and replacement arrangements.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Material fatigue; metal fatigue.
Classifications: Mechanical failure; equipment failure.
Classifications: Cargo transfer; cargo handling.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Crane; cranes.
Classifications: Wire rope; steel wire rope.
Classifications: Operating and work procedures.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.