As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING M-CHECK FOUND FLOOR PANEL NR26 HAS CORROSION ALONG FWD END, TOP AND BOTTOM SIDES. REMOVED 3 STIFFENERS AND TOILET DRAIN FROM PANEL IAW SRM 51-30-2. FAB NEW PANEL HAT IAW DWG NR9957918. ALODINED NEW PANEL HAT IAW SRM 51-10-3. PRIMED IAW SRM 51-10-3. PAINTED IAW SRM 51-10-3. INSTALLED HAT ON PANEL WET IAW ER/A 486156-14.