Jul 13, 2023
Accident
Substantial Ninilchik, AK
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
A total loss of engine power due to a shift of a crankshaft main bearing, which resulted in a lack of lubrication and subsequent overheating and failure of the engine crankshaft.
NTSB ANC23LA053