As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION *** AFT CABIN WET AREA FLOOR BEAM TOP SKIN @ RBL 24.75 STA 947.5 MKD DOT<[01] EXFOLIATION CORROSION FOUND OUT OF LIMITS AT STA 947.5 RBL 24.75 UPPER FLANGE. REFERENCES: SRM 53-70-51-1A-1; DWG SHEET 147A5504 SHEET 38. REPAIR OF UPPER FLANGE WILL BE ACCOMPLISHED ON CUSTOMER TASK CARD: TTG8Q00TXP7Q;[02] FINAL INSPECTION; VERIFIED STEP #1.