Jan 19, 2023
Accident
Substantial North Castle, NY
Injuries2 fatal
Phase of Flight-
ConditionsIMC
OperationFAR 091
Probable Cause
The pre-ignition/detonation damage to the No. 4 piston for reasons that could not be determined, which allowed the crankcase to become pressurized and resulted in oil exhaustion and subsequent catastrophic internal engine failure.
NTSB ERA23FA113