As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:B-CK, FIRST BAT FWD OF MLG W/W JUST RT OF KEEL BEAM HAD R2 INTERCOSTAL CORRODED. REMOVED R2 INTERCOSTAL. FABRICATED NEW INTERCOSTAL FROM 2024-0 MAT AND HEAT TREATED TO T3 CONDITION IAW BAC5602. HEAT TREATED VERIFIED. INSTALLED INTERCOSTAL PER SRM 53-1-0