As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON AFT CARGO INTERCOSTAL AFT OF RT ZEE CHANNEL AT BS 767. CORROSION FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. REMOVED AND REPLACED THE INTERCOSTAL BS 737 - 787 RBL30, WL 158 IAW SRM 51-40-00-02-0G-0 AND DWG 146A8123. CAUSE OF CORROSION WAS MOISTURE.