As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: AFT CABIN WET AREA PASSENGER FLOOR STRUCTURE UPPER SURFACE APPROX STA 986.5 LBL 45 - EVIDENCE OF CORROSION AROUND AT STRUCTURE AFT OF AFT ENTRY DOOR SILL DRAIN. INSTALLED NEW IAW SRM 53-70-51-2R-6 REPAIR 6.