What was found
MAIN AVIONICS COMPARTMENT - DOOR CUTOUT INTERIOR STRUCTURE HAS SUSPECTED CORROSION ON FORWARD MIDDLE SECTION OF STGR 27 AT FS409.0. (C-CHECK RO 10/8/2021) REMOVED CORROSION ON DOOR CUTOUT INTERIOR STRUCTURE ON FORWARD MIDDLE SECTION OF STGR 27 AT FS409.0. REF CRJ200 SRM 51-21-06. EVALUATED AND FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED SUPPORT BRACKET WITH 1EA. NEW REF PREVIOUSLY INCORPERATED REO 601R-53-41-059, REV-C, DATED 2020-03-11, CRJ200 SRM 51-42-21, CRJ200 SRM 51-42-06 AND DWG 601R32200 REV -V. COMPLIED WITH 51-900-1003-SKY.