Jul 10, 2003
Accident
Substantial Aniak, AK
Injuries1 minor
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The compressor discharge pressure line (Pc line) B-nut coming loose at the fuel control unit, which resulted in a total loss of engine power, and subsequent in-flight collision with trees during an autorotation. A factor associated with the accident was the improper installation of the Pc line B-nut by company maintenance personnel.
NTSB ANC03LA073