Dec 13, 2019
Accident
Substantial Carlsbad, CA
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The fatigue failure of the crankshaft. Contributing to the accident was the undocumented installation of the supercharger, which resulted in increased stress on the crankshaft.
NTSB WPR20LA042