Regional Jet 900 (CRJ900)
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Loss Of Aircraft Control
Flight Crew Returned To Gate; General Flight Cancelled / Delayed; General Maintenance Action
Human Factors; Aircraft; Procedure
During the flight control check after push back from the gate; the captain noticed that the rudder was swinging in the improper direction as shown in the flight control screen on ED2 (Electronic Display 2).  We returned to gate due to the rudder being rigged the wrong direction or a sensor issue with the rudder. I believe a mechanic was complacent on installing related parts to the rudders functions and should be investigated due to this being checked off in the AML as ops check good. This is for the safety of all future flights as well as the passengers and crew on board.
CRJ-900 Captain reported a gate return caused by a mis-rigged rudder.