Primary finding
Probable cause
An inaccurate touchdown during a full autorotation, which resulted in main rotor flex which cut off the tail boom. Factors were the pilot's lack of total experience in helicopters and high density altitude.
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NTSB investigation record
DEN99LA173
CompletedEnstrom 280C· N84DH
- Date
- September 30, 1999
- Location
- Longmont, CO
- Conditions
- VMC
- Record
- Completed
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