Investigation Report
Support Guide Frame Fell During Riser and Blowout Preventer Removal
05-19-2018 13:23 G11081 GC 645 Required Evac., RW/JT (>3 days)
- BSEE
- Investigation Report
- Unknown
- Dropped objectsFalls from heightHuman factors
- Lifting operationsWorking at height
- Job safety analysisOperating and work proceduresOperational supervisionStop-work authority
- Upstream oil and gas
- Offshore installation
Summary
BSEE investigates injuries to two workers when a lateral support guide frame fell during riser and blowout preventer removal on the Holstein Spar Rig. The report examines premature removal of supporting nuts, conflicting supervisory instructions, unread task documentation and failure to stop work when instructions departed from the planned sequence.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Falls from height; fall from height.
Classifications: Human factors; human performance; ergonomics.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Working at height; work at height.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Operating and work procedures.
Classifications: Operational supervision.
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.