As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REFERENCE NON ROUTINE C044885. DURING C4 S1 C-CHECK INSPECTION NOTED AFT CARGO COMPARTMENT FLOOR FRAME 59 U-CHANNEL IS CORRODED FROM STRINGER 41 RT TO STRINGER 38 LT. MAINTENANCE REMOVED AND REPLACED U-CHANNEL IN ACCORDANCE WITH THE REQUIREMENTS OF SRM 51-44-11 AND SRM 51-42-11. UPON COMPLETION OF THE REPAIR IT WAS INSPECTED AND FOUND ACCEPTABLE. (A)