What was found
ENGINE REMOVED DUE TO TURBINE WHEEL FAILURE. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: #1 WHEEL EXHIBITS A RIM FAILURE. CRACK ORIGINATED AT RIM AND PROGRESSED ON THE LEADING EDGE SIDE 3/8" UNTIL OVERLOAD, PROGRESSING AROUND A1/16" X 1/4" CASTING FLAW 5/8" FROM THE TRAILING EDGE CENTER OF WHEEL. FLAW IS SMOOTH TEXTURED AND APPEARS TO BE A 1/4" CIRCULAR PLUG INSERT. 45% OF WHEEL NOT RECOVERABLE DUE TO EXITING THROUGH GP SECTION AND A/C COWLING.