What was found
CORROSION ON INTERCOSTAL AT ACB BS773 RBL20 WL157.<[01] UPDATED MEASUREMENTS;[02] REMOVED AND REPLACED THE WEB (INTERCOSTAL) AT ACB BETWEEN BS.767 - BS.787 RBL.20 WL.157 IAW B-737-700 SRM 51-40-02 DWG#146A0081 REV: - AND DWG#146A8123 REV:;[03] UPDATE ACTION CORRECTIVE: REMOVED AND REPLACED THE WEB (INTERCOSTAL) AT ACB BETWEEN BS.767 - BS.787 RBL.20 WL.157 IAW B-737-700 SRM 51-40-02 DWG#146A0081 REV: - AND DWG#146A8123 REV: -;[04] VERIFIED CORRECTIVE ACTION ITEM 3; CARD COMPLETE.