As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CARGO BAY FLOOR SUPPORT CAP AT LBL27 BETWEEN FS 570.00 AND FS 621.00 ON OTBD EDGE HAS CORROSION AROUND NUTPLATES. FURTHER INVESTIGATION FOUND CORROSION MORE THAN 75 PERCENT OF MATERIAL THICKNESS. CORROSION IS BEYOND LIMITS OF SRM 53-00-00, FIG 101, SHEET 3 AND REO 601R-53-00-005, REV B.