Investigation Report
Lever Hoist Broke and Dropped Part During Crane Boom Raising
05-21-2025 1345 G14205 EB 602 A Crane
- BSEE
- Investigation Report
- Unknown
- Dropped objectsHuman factorsMechanical failure
- Inspection and maintenanceLifting operationsRiggingWorking at height
- CraneScaffold
- Control of workPre-use checksSafety communicationSimultaneous operations coordination
- Upstream oil and gas
- Offshore installation
Summary
An investigation examines a crane incident on the Nansen Spar involving lever hoists connecting scaffolding to the crane boom. Raising the boom broke a hoist, dropping part approximately 30 feet. Findings address communication, simultaneous operations and inspection arrangements; operator corrective actions cover anchor-point approval and crane inspections.
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: Rigging; slinging.
Classifications: Working at height; work at height.
Classifications: Crane; cranes.
Classifications: Scaffold; scaffolding.
Classifications: Control of work; work control.
Classifications: Pre-use checks; pre-use inspection.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Simultaneous operations coordination; SIMOPS; simultaneous operations.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.