As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO COMPARTMENT FLOORBOARD PANEL 140BF HAS AREAS OF CORROSION ALONG RH AND LH EDGES / EVALAUTED DAMAGE FOUND TO BE GREATER THAN 20 IN OUT OF LIMITS IAW SRM 53-00-53-1A-1. FABRICATED NEW FLOOR BOARD 140BF IAW B-737 DWG 453A2610 REV K. + SRM 53-60-53-01-1