What was found
PAX DOOR DD4 INTERCOSTAL CORRODED BETWEEN FS320 AND FS338.963. (C-CHECK RO 4/9/2022) UPON FURTHER INVESTIGATION FOUND CORROSION TO BE AT DD3 INTERCOSTAL BETWEEN FS320 AND FS338.963. REMOVED AND REPLACED PAX DOOR INTERCOSTAL AT DD3 FS320-FS338.963 IAW CRJ 700 SRM 51-42-06-001-001-A01 AND 51-42-21-001-001-A01 REV. 38B DATED 14 DEC 2020. MAJOR REPAIR TASK CARD 51-900-1002-SKY AND FORM M-337 COMPLETED AND ATTACHED. NO WEIGHT CHANGE NOTED. SEE CONTINUE CARD FOR DETAILS