As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAB LOCK FOUND MISSING WHEN ENGINE DISASSEMBLED. NO CONTACT NOTED BETWEEN BLADE AND 3RD STAGE STATOR. BROKEN PIECES OF THE TAB LOCK CONTACTED BLADES AND STATORS AFT OF THE 3RD STAGE CAUSING IMPACT DAMAGE. ENGINE WAS LAST OVERHAULED BY PRATT AND WHITNEY. (X)