Regional Jet 200 ER/LR (CRJ200)
Maintenance Powerplant; Maintenance Airframe
Time Pressure; Workload; Troubleshooting
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
General Flight Cancelled / Delayed; General Maintenance Action
Aircraft; Incorrect / Not Installed / Unavailable Part; Procedure
I failed to control the situation correctly. This is my error only. I should have stopped Aircraft X when I was told that there was a roller possibly missing from the cargo door support on the rail. The door was reinstalled to the rail and allowed to continue. We are not allowed to fly with missing parts. I hesitated at the time but erroneously called this a non event and allowed Aircraft X to continue to ZZZ1 flight. This was my error.
We took a call from Company Maintenance stating the cargo door stuck when the ramp. Agents tried to close it. I went to Aircraft X to find the door was off its track on both sides and the aft upper track roller was missing; just the wheel axle was present. I re-seated the door on its track and was able to close and lock the door for flight.  I called Maintenance Control and informed [them] of the missing track wheel and if [they] wanted to place it on MEL or clear the item; Maintenance Control informed me that there is no MEL/CDL relief for this specific item and told me to sign the Corrective Action and [complete the appropriate paperwork]; putting the aircraft back into service as serviceable.   Aircraft was then released for service and flew from ZZZ to ZZZ1 with 49 souls onboard.
Technician reported allowing aircraft to fly with parts missing on cargo door.