Aug 27, 1997
Accident
Destroyed MANILA, AR
Injuries1 fatal
Phase of Flight-
ConditionsVMC
OperationFAR 137
Probable Cause
Fatigue failure of the main rotor blade resulting in the in-flight separation of the main rotor system due to the use of an unairworthy blade, and failure of the maintenance personnel who modified the rotor blade and the mechanic who complied with the Airworthiness Directive to locate the unapproved repair. A factor was the unapproved repair of the main rotor blade.
NTSB FTW97FA330