Investigation Report
Crane Load Block Failure While Lowering Paperwork to Vessel
05-09-2025 0900 G13938 ST 229 Required Evacuation - Other Injury (First Aid); Crane
- BSEE
- Investigation Report
- Unknown
- Dropped objectsHuman factorsMechanical failure
- Inspection and maintenanceLifting operations
- CraneWire rope
- Job safety analysisOperating and work proceduresPre-use checksPreventive maintenance
- Upstream oil and gas
- Offshore installationVessel
Summary
Investigation of a crane load-block failure at South Timbalier 229 during lowering of JSA paperwork to a vessel. A deckhand strained his back while escaping falling components. Internal debris obstructed lubrication, leading to bearing and retention failure. Findings examine load positioning, inspection limitations and revised maintenance requirements.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Human factors; human performance; ergonomics.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Crane; cranes.
Classifications: Wire rope; steel wire rope.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Operating and work procedures.
Classifications: Pre-use checks; pre-use inspection.
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.
Classifications: Vessel; aboard ship; onboard vessel.