What was found
CABIN INTERIOR FS847.00+32 BETWEEN STGR26L AND STGR26R HAS CORROSION ON AFT SIDE FLANGE AS MARKED (C-CHECK RO 9/15/2024) REMOVED AND REPLACED LOWER FRAME FS847.00+32. BETWEEN STGR20L AND STGR20R REF. CRJ900 SRM 51-42-21-001-001-A01, SRM 51-42-06-001-001-A01 AND DWG# SH690-37060 REV. AC. PERFORMED PRESSURE LEAK CHECK OF AIRCRAFT IAW CRJ 900 AMM 21-31-00-910-801-A02. LEAK CHECK GOOD. COMPLIED WITH SKYWEST TASK CARD 51-900-1002-SKY (CL600-2D24) STRUCTURAL MAJOR REPAIR (**RII**).