As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THIS DEFECT WAS DISCOVERED AT 1750-HOUR OVERHAUL. OUTER COMBUSTION CASE WAS CRACKED IN ARMPIT UNDER THE SCREEN PATCH REINFORCEMENT AND EXTENDED ON SEAM AND INTO THE SEAM PERPENDICULAR TO THE FLANGE AND PARALLEL TO THE FLANGE. A CRACK SUCH AS THIS MAY CAUSE POSSIBLE POWER LOSS IN ENGINE. NO REPAIR IS PERMITTED IN THIS AREA. OUTER COMBUSTION CASE IS SCRAPPED. CAUSE UNKNOWN.