Mar 22, 2006
Accident
Substantial Mesa, AZ
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The manufacturer's inadequate design clearance of the main rotor blade grip pitch cases, which resulted in damage to the pitch cases when they contacted main rotor perimeter bolts during maneuvering flight.
NTSB ANC06LA038