Primary finding
Probable cause
The inflight separation of the tail rotor due to improper maintenance procedures and the installation of incorrect attachment hardware on the tail rotor blade pitch change linkages.
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NTSB investigation record
LAX90DUJ05
CompletedBell Uh-1E· N138US
- Date
- November 4, 1989
- Location
- Mesa, AZ
- Conditions
- VMC
- Record
- Completed
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