As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) COMPRESSOR TURBINE VANE BOLTS (3OFF) HAD THE BOLT HEADS SEPARATE AND BECOME TRAPPED BETWEEN THE VANE AND TURBINE DISC CAUSING DAMAGE TO THE DISC IN THE AREA OF THE FIR TREE AND THE VANE.SUSPECT BOLTS WERE NOT REPLACED DURING THE LAST REPAIR WHICH WAS FOR AN ENGINE OVERTEMP.