As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION AFT CARGO COMPMT. BILGE FLOOR SIDE Z CHANNEL FROM STA 727E + 10 TO STA 847 S-26L WL 155.5 MKD DOT 60-032 / REMOVED DAMAGED Z CHANNEL AND REPLACED AT AFT CARGO L/H STA 727E TO STA 847 AS PER B737-700 SRM 51-40-02-0G-0 AND DWG # 146A7502. FOUND DEEP CORROSION AND EXFOLIATION AROUND FASTENERS HOLES.