As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TURBINE WAS RECEIVED FOR REPAIR DUE TO N1 LOCK-UP. UPON DISASSEMBLY FOUND THAT THE DIAPHRAGM HAD SEPARATED FROM THE CASTING AND WAS REDUCED TO SEVERAL SMALL PIECES. ALSO FOUND THE FIRST AND SECOND STAGE TURBINE WHEELS HAD SUSTAINED SEVERE DAMAGED DUE TO CONTACT WITH THE DIAPHRAGM. THE WHEELS WERE SCRAPPED.