Nov 14, 2023
Accident
Substantial Lowell, IN
Injuries1 minor
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
Fatigue cracking of the propeller blade root, which resulted in the in-flight separation of the propeller blade from its root. Contributing to the accident was the improper machining of the blade root threads, which resulted in chatter/ratchet marks that weakened the strength of the blade root.
NTSB CEN24LA038