As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A SCHEDULED BOROSCOPE OF THE RT ENGINE, THE COMPRESSOR TURBINE BLADES WERE FOUND DAMAGED BY FOD AND A POWER TURBINE CONTAINMENT SHROUD BOLT HEAD WAS FOUND BROKEN OFF AND RETAINED BY SAFETY WIRE. THE REST OF THE BOLT BACKED OUT OF ITS THREADED HOLE AND PASSED THROUGH THE COMPRESSOR TURBINE STATOR & DISC AND THE POWER TURBINE STATOR & DISC BEFORE EXITING THE ENGINE.