As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C4 S1 C CHECK, INSPECTION REPORTED CORROSION WAS FOUND ON THREE INSERTS ON FLOOR PANEL 261PF. MAINTENANCE REMOVED THE CORRODED PANEL. THE NEW PANEL WAS INSTALLED IN ACCORDANCE WITH THE REQUIREMENTS OF TASK CARD CP 753-36. FOLLOWING THE INSTALLATION OF THE NEW PANEL, IT WAS INSPECTED AND FOUND ACCEPTABLE.