What was found
*AFT CARGO DOOR FWD ROLLER TRACK SUPPORT CHANNEL ON AFT SIDE OF FRAME 1000 AT STRINGER 16L IS CRACKED AND GOUGED. (C-CHECK) RO 2/1/2021 AFT CARGO DOOR FWD ROLLER TRACK SUPPORT CHANNEL FOUND TO BE OUT OF LIMITS REF CRJ900 SRM 23-61-23-101-001-A01. SEE CONTINUATION CARD FOR DETAILS. REMOVED AND REPLACED WITH NEW AFT CARGO ROLLER TRACK SUPPORT CHANNEL REF CRJ900 SRM 51-42-06-001-001-A01 AND DWG: MM670-35060, REV T. COMPLIED WITH 51-900-1002-SKY