Apr 28, 1997
Incident
Minor TUCSON, AZ
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 121
Probable Cause
an undetermined failure in the #1 (left) engine turbine assembly, which resulted in a fracture of the first stage nozzle guide vane (NGV) and subsequent damage to the turbine blades.
NTSB LAX97IA170