What was found
CORROSION ON INTERCOSTAL DD3 AFT (C-CHECK RO 12/26/2021) PAX DOOR INTERCOSTAL AFT DD3 HAS CORROSION ON MORE THAN ONE ELEMENT. OUT OF LIMIT REF CRJ 200 SRM 52-00-00 AND REO 670-52-11-010 REV. NC DATED 2002-02-25. REMOVED CORRODED PAX DOOR INTERCOSTAL DD3 AFT REF CRJ 700 SRM 51-42-06-001-001-A01. INSTALLED NEW PAX DOOR DD3 INTERCOSTAL REF BOMBARDIER DWG 601R31702 REV N AND CRJ 700 SRM 51-42-06-001-001-A01. COMPLIED WITH ST 51-900-1002-SKY (CL600-2C10). PRESS CHECKED GOOD.