As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR PANEL 160G. FILLER WAS REMOVED FROM PANEL IAW SRM 51-30-2 THEN NEW FILLER AND PANEL WERE FABRICATED IAW DWG 9957828 AND SRM 51-10-2. AFTER THAT, THE FABRICATED PARTS WERE TREATED AND PAINTED IAW SRM 51-10-3, PAR 21 AND 14. FINALLY FLOOR PANEL ASSY WAS INSTALLED IAW SRM 51-30-2.