Investigation Report
EC225 Ditched in North Sea Following Gearbox Lubrication Warnings
S2-2012 EC225 LP Super Puma G-REDW 06-12
- AAIB
- Investigation Report
- S2/2012
- Mechanical failure
- Helicopter operations
- HelicopterPumpsRotating machinery
- Evacuation, escape and rescue
- Marine waters
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Summary
Preliminary AAIB findings describe the controlled North Sea ditching of an EC225 following gearbox lubrication warnings. A circumferential crack near a weld in the bevel gear vertical shaft stopped both mechanical oil pumps being driven. The bulletin outlines emergency lubrication, recorded vibration data, evacuation and continuing investigation.
Classifications: Mechanical failure; equipment failure.
Classifications: Helicopter operations; offshore aviation; rotary-wing operations.
Classifications: Helicopter; rotorcraft.
Classifications: Pumps.
Classifications: Rotating machinery; rotating equipment.
Classifications: Evacuation, escape and rescue; EER; escape and rescue.
Classifications: Marine waters.
S2/2012.