Investigation Report
Personnel-Basket Hard Landing During Transfer to Vessel
04-18-2026 0640 G00830 SS 229C Required Evacuation, Other Injury (First Aid), Crane
- BSEE
- Investigation Report
- Unknown
- Human factorsMechanical failure
- Inspection and maintenanceLifting operationsPersonnel transfer
- CraneWinch
- Functional testingJob safety analysisStop-work authority
- Upstream oil and gas
- Offshore installationVessel
Summary
BSEE investigates a personnel-basket hard landing during transfer from Ship Shoal 229 C to a vessel, injuring three contractors. Dynamic brake tests reproduced auxiliary winch slippage, with performance affected by throttle and control actuation. Findings identify reduced braking effectiveness and continued operations after abnormal movement, alongside failures to exercise stop-work authority.
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: Personnel transfer; crew transfer.
Classifications: Crane; cranes.
Classifications: Winch; winches.
Classifications: Functional testing; function test.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Stop-work authority; stop work; stop-work intervention.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.
Classifications: Vessel; aboard ship; onboard vessel.