As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK INSPECTION, DISCOVERED CORROSION ON THE UPPER SURFACE OF THE UPPER FLOORBEAM CHORD BETWEEN BS 1450-1460, RBL 57.7. BLENDOUT OF CORROSION EXCEEDED SRM LIMITS AND REQUIRED TRIMMING TO REMOVE CORROSION. REINFORCEMENT REPAIR ANGLES AND FILLERS WERE FABRICATED AND INSTALLED. REPAIRED IAW EIAA, ENGINEERING CHANGE/REPAIR AUTHORIZATION NR 470-53-081-2.