As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO RT INTERCOSTAL FOUND CRACKED AT STA 727A TO 727B RBL 13. REMOVED CRACKED INTERCOSTAL AT AFT CARGO RT STA 727B TO 727A RBL 13 IAW SRM 51-40-02-0G-0. FABRICATED NEW INTERCOSTAL IN BACKSHOP ON N/R 40849/1600/0001 IAW DWG 146A7505. DRILLED AND TRIMMED INTERCOSTAL IAW SRM 51-40-05-0G-0 AND DWG 146A7505. INSTALLED NEW INTERCOSTAL IAW SRM 51-40-02-0G-0 AND DWG 146A7500.