As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD MCD FLOOR PANEL CRACKED DURING REMOVAL CRACK LOCATED RT SIDE OF PANEL APROX 12 IN FROM FWD EDGE ALSO ONE INSERT PULLED THRU ON FWD RT EDGE PANEL MARKED AS 3F MFG AND INSTALLED FLOOR PANEL IAW EO B757-5320-9692-G POS 1L INBD MARKED AS 3F.