Sep 16, 2013
Accident
Substantial Detroit, OR
Injuries1 fatal
Phase of Flight-
ConditionsVMC
OperationFAR 133
Probable Cause
The fatigue failure of the upper two tailboom attachment points, which resulted in the tailboom separating from the fuselage during logging operations. Contributing to the accident was poor maintenance throughout the helicopter’s operational life.
NTSB WPR13FA411