As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON RAIL AT AFT CARGO BAY BS 773 RBL 7 WL 157. REMOVED CORROSION AT ACB RAIL BS 773 RBL 7 WL 157. LOCATED AND INSTALLED REPAIR CHANNEL FROM ITEM P/N 7530199, IAW SRM 53-00-53-2R-2 57049U 10DEC2020. CORROSION REMOVED DIMENSION L=2' X W 1.25 X DEPTH 0.030 ORIGINAL THICKNESS 0.063' FOUND TO BE OUT OF LIMITS, PER SRM 53-00-53-1A-2 57049U 10DEC2020.