As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE WAS AT REPAIR STATION FOR SCHEDULED OVERHAUL. DURING TEAR DOWN A BROKEN TAB LOCK WAS DISCOVERED ON THE 4TH STAGE COMPRESSOR DISK. THIS CAUSED THE 4TH STAGE BLADE TO SHIFT AND RUB ON THE 4TH STAGE STATOR. THIS REPAIR STATION PREVIOUSLY SUBMITTED AN SDR, (2013FA0000416) ON 7/18/2013 ON TAB LOCK PN 536211. THAT PART WAS AN OEM PART. THIS PN 536211AA IS A PMA PART BY IDENTICALLY. SAME FAILURE ON BOTH PARTS.