Regional Jet 200 ER/LR (CRJ200)
Maintenance Airframe; Maintenance Powerplant
Human-Machine Interface; Confusion; Situational Awareness; Time Pressure
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Loss Of Aircraft Control
Flight Crew Overcame Equipment Problem; Flight Crew Regained Aircraft Control; General Maintenance Action
Human Factors; Aircraft; Procedure
It was brought to my attention on date at XX:49 that on DATE1; I failed to reinstall panels on Aircraft X. On DATE1; I removed panels A; B; and C in preparation for inspector Name inspection of the actuating mechanism on the right wing flap of Aircraft X. upon completion of Name's inspection; I raised the flaps to facilitate the installation of panels D; E; and F. Upon completion of the installation of these panels I thought I return to the flap actuating mechanism panels to reinstalled them; however it is apparent that I failed to accomplish this task; thus failing to follow the job card procedure to reinstall the panels.Airplane was rolling with 10 degree flaps and was experiencing issues. They stop the aircraft to investigate; extended flap to 45 and found the three actuating mechanism panels missing.
Technician reported omitting the re-installation of trailing edge flap access panels during routine maintenance. The aircraft suffered control ability issues on a subsequent flight and the missing panels were reinstalled.