As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NEED TO REMOVE FLOOR PANEL 221FF TO ACCESS STRINGER REPAIR. REMOVED FLOOR PANEL 221FF IAW AMM 53-12-12. UPON REMOVAL OF FLOOR PANEL 221FF FOUND CORROSION ON BOTTOM OF PANEL. NO ALLOWABLE LIMITS FOR PANEL. INSTALLED NEW FLOOR PANEL IAW AMM 53-12-12.