As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCD FLOOR BOARD DAMAGED - 6TH AFT OF BULKHEAD ( AFT OF MAIN CARGO DOOR ) PANEL REMOVED AND ROUTED TO SHEET METAL SHOP REF B757 AMM 53-01-01. VERIFIED MATERIAL USED FOR FABRICATED FLOOR PANEL ON MAIN CARGO DECK. CONFIRMED INSERT INSTALLATION. DONE PER SREO-9692-REQ001.