As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR PANEL 21 CORRODED IN FLOOR PANEL RACK. RECEIVED NEW FLOOR PANEL NR 21. TO BE INSTALLED ON JOB CARD 0590-4010-8M. LOCATED AND DRILLED, LOCATED AND DEBURRED FLOORPANEL NR 21 IAW SRM 51-10-4 TO BE INSTALLED ON WORK CARD 2311R68.