As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO FLOORBOARD 140 AF CORRODED AT EDGE PREMITER. / REMOVED CORROSION FROM AFT CARGO FLOOR PANEL 140AF. FOUND TO BE OUT OF LIMITS IAW B737 SRM 53-00-53-1A-1 FIG. 102 CORROSION IS OVER 20'. REPLACED WITH NEW PANEL P/N 453A2610-38 A# WN1849