As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOORBEAM HAS CORROSION AT FS 349.00 NEAR AFT END OF SERVICE DOOR CUTOUT. REMOVED CORROSION AND FOUND TO BE BEYOND ACCEPTABLE LIMITS IAW SRM 51-21-06 AND 53-00-00. CORROISON DAMAGE IS THROUGH ENTIRE THICKNESS OF FLOORBEAM. REPAIRED IAW REO 601R-53-21-1361. PERFORMED NDT OF CUT OUT AREAS IAW NDTM 51-20-06. NO INDICATIONS NOTED. HEAT TREATED REPAIR IAW REO 601R-53-21-1361, SRM 51-24-06, AND SRM 51-24-16.