As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE PYLON AFT ENGINE MOUNT HAS CORROSION ON THE MATING SURFACE. CLEANED SURFACE CORROSION IAW SRM 51-74-10. REAMED HOLE TO REMOVE DAMAGE IAW SRM 51-40-44. INSTALLED NEW NR 1 ENG AFT ENG MOUNT ASSY(ATTACH FITTING) IAW AMM 54-51-85/401. WITNESSED THE INSTALLATION OF REPLACEMENT OF MOUNT ASSEMBLY IAW AMM 54-51-85/401 INCLUDING TORQUES. THE ENGINE MOUNT WAS INSTALLED.