Apr 7, 2009
Accident
Substantial Corvallis, OR
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The improper assembly of main rotor blade control components by the operator's maintenance personnel, which resulted in the main rotor blade's divergent path and their contact with the tail rotor drive shaft during ground operation following landing.
NTSB WPR09LA184