As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED TAKEOFF AT APPROX 80KT. A/C GAVE A PRONOUNCED LEFT/RIGHT YAW MOVEMENT; 3-4 SECONDS LATER APPROX.; A/C RECEIVED A MUCH MORE INTENSE LEFT/RIGHT PULL THAT WAS AT OR NEAR LIMIT OF CONTROL. REMOVED AND REPLACED RUDDER STEERING ACTUATOR NOSE STEER BYPASS VALVE PER MM.