As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 0971714) AFTER ZEE CHANNEL SIDEPLATE REMOVAL WAS FOUND CORROSION ON UPPER FLANGE OF INTERCOSTAL BTW. STA 747 AND 767 ABD S-25R AT AFT. CARGO COMPARTMENT. INTERCOSTAL BTW. STA 747 AND 767 ABD S-25R AT AFT. CARGO COMPARTMENT WAS REPLACED PER B737-800 SRM 51-40-02-0G.