Investigation Report
Uncontrolled Man-Rider Descent During Drillship Hose Maintenance
02-17-2025 1645 G32504 GC 432 Required Evacuation - Other Lifting Device
- BSEE
- Investigation Report
- Unknown
- CorrosionMechanical failure
- Inspection and maintenanceWell interventionWorking at height
- Operator displays and control interfacesWinch
- Control of workOperational supervisionPre-use checksPreventive maintenance
- Upstream oil and gas
- Vessel
Summary
BSEE investigates an uncontrolled man-rider descent during hose maintenance on the Noble Globetrotter 1 drillship. Altered control settings bypassed safety functions, while corrosion, inadequate maintenance and inspection deficiencies were identified. The worker underwent precautionary medical evacuation and was cleared for full duty. BSEE distinguished administrative deficiencies from equipment-failure factors.
Classifications: Corrosion; corrosion damage.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Well intervention; workover; well servicing.
Classifications: Working at height; work at height.
Classifications: Operator displays and control interfaces.
Classifications: Winch; winches.
Classifications: Control of work; work control.
Classifications: Operational supervision.
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: Vessel; aboard ship; onboard vessel.