As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE INVESTIGATING RISING ENG ITT TREND, FOUND SIGNIFICANT DAMAGE TO COMPRESSOR SHROUD SEGMENTS & CT BLADES. CAUSE OF DAMAGE APPEARS TO BE FROM EXCESSIVE CARBON BUILD UP ON THE COMBUSTION LINER COMING LOOSE & ABRADING SEGMENTS & CT BLADES TO THE POINT THE SEGMENTS LOST PROPER ATTACHMENT TO THE VANE RING. THIS REPORT WILL BE AMENDED AFTER ADDITIONAL REVIEW OF REMOVED COMPONENTS IS COMPLETED.