As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE REMOVED DUE TO CYCLED NR 1 AND NR 2 WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED: (1) ERODED ALL LEADING EDGE AND SULPHIDATION ON 17 OF THE NR 1 WHEEL BLADES. (2) ERODED LEADING EDGE 11 AND BURNT TRAILING EDGE ON 7 OF THE NR 1 NOZZLE VANES. PARTS SENT TO ALLISON ENGINE ON AFA NR 29359A FOR EVALUATION. (RFSE 250-93-2)