Primary finding
Probable cause
The failure of the pilot to maintain rotor rpm during takeoff. The high density altitude and uphill terrain were factors.
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NTSB investigation record
CHI90DCD02
CompletedBell 47G-2· N90529
- Date
- August 26, 1990
- Location
- Wall Lake, IA
- Conditions
- VMC
- Record
- Completed
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