As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION AT AFT CARGO COMPARTMENT INTERCOSTAL BETWEEN STA 907 + 15, BETWEEN STR 26L AND STR 25L. REMOVED CORRODED INTERCOSTAL AFT CARGO BAY BETWEEN BS 907 - BS 927 STR 25L - 26L AND INSTALLED REPLACEMENT INTERCOSTAL PER B737 -800 SRM 51-40-02 REF BOEING DWG 147A7401.