As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO COMPARTMENT STA 747-767 RBL 22 WL 158; INTERCOSTAL IS CORRODED ON UPPER FLANGE AT NUTPLATES. / REMOVED AND EVALUATED CORROSION ON INTERCOSTAL STA 747-767 RBL 22. ORIGINAL THICKNESS .030' LOSS OF .010' WITH .020' REMAINING BLENDS FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2. REMOVED AND REPLACED INTERCOSTAL PART # 146A7505-2 PER SRM 51-40-02-0G-0 AND DWG 146A7502 REV- REMOVEABLE COMPONENT P/N 146A7505-2