As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOWER FUSELAGE, FWD CARGO COMPARTMENT. FROM STA 500A TO STA 500I AT RBL 21 THE INTERCOSTALS (BAFLES) WITH CORROSION. REPLACED (BAFLES) INTERCOSTALS FROM STA 500A TO STA 500I AT RBL 21 IAW B737-800 BCF SRM 51-10-02-0G-0 PARG 9 AND BOEING DWG 143A7505 REV B