As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR PANEL 221CF HAS SEVERAL INSERTS WITH SIGN OF CORROSION OR MISSING<[01] FABRICATED MAIN CABIN FWD WET AREA FLOOR PANEL 221CF BY OUTSIDE VENDOR (AERO MARINE) WITH P.O.2041251 PER BOEING DRAWING #141A5810. FLOOR PANEL 221CF WILL BE INSTALL ON FAULT #TTG8Q00MXL74;[02] VERIFIED STEP 1.