As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED LOUD NOISE FOLLOWED BY CHIP DETECTOR WARNING WHILE DESCENDING THROUGH 9,000 FEET. WHEN VIEWED THROUGH EXHAUST OPENINGS, ENGINE HAS SEVERE THERMAL AND MECHANICAL DAMAGE. ALL POWER TURBINE BLADES BROKEN. SOME POWER TURBINE GUIDE VANES MISSING AND COMPRESSOR TURBINE BLADES BROKEN. ENGINE WAS NOT DISASSEMBLED AT THIS LOCATION.