Feb 27, 2024
Accident
Substantial Kekaha, HI
Injuries1 serious, 4 minor
Phase of Flight-
ConditionsVMC
OperationFAR 135
Probable Cause
Maintenance personnel’s noncompliance with maintenance manual procedures that required the removal of the overrunning clutch output bearing during the regreasing procedure, which resulted in inadequate regreasing of the bearing and the subsequent failure of the overrunning clutch assembly.
NTSB ANC24LA017