Dec 9, 1990
Accident
Substantial PERRIS VALLEY, CA
Injuries1 minor
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
A LOSS OF POWER ON THE LEFT ENGINE DUE TO A FATIGUE FAILURE OF A COMPRESSOR TURBINE BLADE LEADING TO FURTHER COMPRESSOR BLADE DAMAGE; A WORN POWER TURBINE GOVERNOR THROTTLE CAM ASSEMBLY WHICH LED TO LOSS OF POWER ON THE RIGHT ENGINE; AND INADEQUATE MAINTENANCE AND INSPECTION BY THE OPERATOR.
NTSB LAX91FA052