Apr 10, 2015
Incident
Minor Victorville, CA
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
the fracture of one 1st stage turbine blade from a high cycle fatigue crack that originated from a break in the coating on the leading edge of the blade. The cause for the break in the coating could not be determined. Contributing to the uncontained release of turbine material was the yielding and rupture of the turbine exhaust case wall after turbine debris collected at probes in the case.
NTSB ENG15IA017