As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASH 7243 IAD - THE CAPTAIN ABORTED THE TAKEOFF DUE TO A CONFIG RUDDER EICAS MESSAGE ON TAKE OFF. UPON RETURNING TO THE GATE THE CAPTAIN CONTACTED MX CONTROL AND REPORTED THE RUDDER HAD BEEN BUMPED CAUSING THE CONFIG RUDDER MESSAGE. MX PERFORMED AN OPERATIONAL CHECK OF THE RUDDER SYSTEM AND THE A/C RETURNED TO SERVICE.