Jun 30, 2006
Accident
Substantial Chicago, IL
Injuries3 minor
Phase of Flight-
ConditionsVMC
OperationFAR PUBU
Probable Cause
The in-flight separation of a tail rotor driveshaft hanger bearing due to inadequate maintenance performed by maintenance personnel. Contributing to the accident was the inability to maintain directional control due to the lack of tail rotor thrust.
NTSB CHI06GA174