As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE LARGE METAL DEBRIS FOUND IN INTERMEDIATE PRESSURE CHECK VALVE DURING C-CHECK MAINTENANCE. BORESCOPE INSPECTED PER MM. NO LIMITING DEFECTS NOTED. REQUIRES FOLLOW UP BOROSCOPE INSPECTION. DUE TO METAL FOUND IN INTERMEDIATE CHECK VALVE FOLLOW UP BOROSCOPE INSPECTION OF HPC STAGE 6 THROUGH 17 PER AMM WITHIN 50 CYCLES PER AMM. NO LIMITING DEFECTS NOTED.