As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 0564803) CORROSION AT STA 847-856 RBL 24 WL 156 ON AFT CARGO DOOR LOWER SILL INTERCOSTAL. LOCATED AND DRILLED NEW AFT CARGO DOOR LOWER SILL INTERCOSTAL AT STA 847-856 RBL 24 WL 156 IAW B737 SRM 51-40-05 AND BOEING DWG# 146A8321 REV: A. REMOVED AND REPLACED INTERCOSTAL IAW B737 SRM 51-40-02 AND BOEING DWG# 146A8321 REV: A.