EMB ERJ 145 ER/LR
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Flight Crew Rejected Takeoff; General Maintenance Action
Aircraft
During our takeoff roll we had a RUD SYS 1 INOP message appear on the EICAS between 80 knots and V1. Since this indicated that there was a problem with a primary flight control we made the decision to execute a high speed aborted takeoff. We got the message at approximately 105-110 knots. We were able to safely abort; exit the runway; run all appropriate checklists; make all necessary communications; and return to the gate for an aircraft swap. We informed ATC of the aborted takeoff but did not deem it necessary to declare an emergency. During this event there were no reported injuries as well. After the aircraft swap we continued without any further incident.
On the takeoff roll somewhere between 80 knots and V1 I heard a ding; I looked down at the EICAS screen to see a RUDDER SYS 1 INOP message displayed. I called out the abnormality and the Captain commenced an abort. A NO TAKEOFF CONFIG message then displayed on the EICAS. Towered was informed of the abort and that we needed no assistance at that time; the passengers were notified by PA to remain seated. The Captain taxied off the runway; stopped the airplane; we ran the [checklist]; confirmed with the Flight Attendant that everyone was seated and then taxied back to a parking spot to contact Maintenance.
EMB-145 flight crew reports rejecting a takeoff after 80 knots for a RUD SYS 1 INOP EICAS message.