As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INT - DURING Q-5 CHECK VISUAL INSPECTION, FOUND 10 INCHES BY 10 INCHES CORROSION AREA ON FLOOR PAN AT LT LAVATORY DUMP CHUTE CUTOUT BS 1016 LBL 5. INSTALLED WEB SKIN REPAIR SRM 51-70-13 FIG 1. CORROSION TASK NR C53-107-02. CORROSION LEVEL 2. (W)