Primary finding
Probable cause
The loss of engine power due to the failure of an engine accessory oil pump gear. A factor was the lack of suitable terrain for the autorotation.
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NTSB investigation record
FTW94LA166
CompletedBell 47G· N933B
- Date
- May 18, 1994
- Location
- Sulphur, OK
- Conditions
- VMC
- Record
- Completed
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