As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN DECK CARGO FLOOR SUPPORT TEE CAP UNDER LAVATORY COMPOSITE DRAIN HAS CORROSION AROUND THE SCREW HOLE, APPROX 1 INCH. REMOVED CORRODED FLOOR SUPPORT IAW SRM 51-40-21 PAR 6 & 7. FABRICATED NEW FLOOR SUPPORT IAW DRAWING A53612213. INSTALLED FLOOR SUPPORT IAW SRM 51-40-21 PAR 6 & 7.