As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"SUPPLEMENTAL INFORMATION" DURING HEAVY MX INSP THE FWD CARGO BILGE INTERCOSTAL OUTER CHORD IS CORRODED AT STA 684 LBL13. FABRICATED NEW WEB FROM 7075-0 .050" HEAT TREATED TO T6. INSTALLED REPAIR PART, NO OTHER DEFECTS NOTED, ACFT WAS RETURNED TO SERVICE.