What was found
ATTACH ANGLE ON FRAME ON LH SIDE FS1047, AFT SIDE OF AFT BAG BAY DOOR LOWER SIDE ABOVE SILL CORRODED. (C-CHECK RO 6/22/2021) REMOVED ATTACH ANGLE ON LOWER FS1047 ABOVE CARGO BAY LOWER SILL. ATTACH ANGLE HAS 100% EXFOLIATION REPLACE ANGLE. REF: CRJ900 SRM 51-42-20-001-001-A01 AND CRJ900 SRM 51-42-06-001-001-A01. FABRICATED NEW ANGLE P/N MM670-34112-015 USING 7075-O .040" PO #T-53180 REF BOMBARDIER DWG #MM670-34112 REV (B). INSTALLED REPLACEMENT ANGLE WITH REPLACEMENT FASTENERS REF CRJ900 SRM 51-42-06-001-001-A01 AND REF CRJ900 SRM 51-42-20-001-001-A01. RESTORED FINISH AND APPLIED CIC REF CRJ900 SRM 51-25-16-001-001-A01 AND REF CRJ900 SRM 51-21-11-001-001-A01