As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE VISIT, FOUND THE LEFT LOWER BULKHEAD WEB AT FRAME 280 TO BE CORRODED. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPAIRED THE LOWER BULKHEAD WEB AT FRAME 280 IAW EO CR-53MR-174R1. THE AIRCRAFT WAS RETURNED TO SERVICE.