As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOTIFIED BY CREW VIA GRD LINE. ABORTED T/O AT LOW SPEED DUE TO RUD SYS 1 FAIL EICAS MSG. THE MESSAGE WENT AWAY AFTER FOLLOWING CHECK LIST. PERFORMED FIM OF RUDDER SYS INOP ON EICAS PER EMB 145 FIM 27-22-00-810. PERFORMED TEST OF RUDDER PER EMB 145 MM 27-23-00 NO DEFECTS FOUND AT THIS TIME. AIRCRAFT RETURNED TO SERVICE