Primary finding
Probable cause
The pilot's failure to maintain directional control of the helicopter. Contributing to the accident was the pilot's decision to operate the helicopter in a flight regime conducive to unanticipated right yaw.
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NTSB investigation record
LAX90LA283
CompletedBell 206B ii· N2917W
- Date
- August 14, 1990
- Location
- San Francisco, CA
- Conditions
- VMC
- Record
- Completed
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