Aug 18, 1995
Incident
Minor CHAMPAIGN, IL
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 121
Probable Cause
fatigue cracking and subsequent catastrophic failure of the number two engine helical drive (bull) gear, which resulted in an overtemperature condition, bursting of the combustion plenum, and a subsequent in-flight fire.
NTSB CHI95IA286