As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED THE ENGINE FOR REPAIR DUE TO VIBRATIONS, AND METAL IN OIL. UPON DISASSEMBLY OF THE GEARBOX FOUND THE ROLLER RETAINER OF THE NR 3 BEARING FRACTURED IN (4) PLACES. ALSO FOUND THAT THE NR 1 TURBINE WHEEL BLADE TIPS HAD BEEN RUBBING THE BLADE TRACK WHICH CAUSED THE VIBRATION. TECH SUSPECTS THE FRACTURED RETAINER MAY HAVE BEEN A RESULT OF THE VIBRATION. (K)