Primary finding
Probable cause
Failure of the helicopter's tail rotor drive shaft and drive shaft bearing due to undetermined reason(s).
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NTSB investigation record
LAX92FA054
CompletedAerospatiale Sa316B· N146RM
- Date
- November 28, 1991
- Location
- Bridgeport, CA
- Conditions
- VMC
- Record
- Completed
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