As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE, THIS MORNING THE AUTO PILOT KICKED OFF 3 TIMES THEN WORKED FINE. THE APPROACHING INTO DR WE HAD A RUDDER BOOST FAIL LIGHT FOLLOWED BY A YAW DAMP DISENGAGE. WE RESET THE YAW DAMPER AND THEN IT KICKED OUT AGAIN MULTIPLE TIMES. CONTINUED APPROACH WITHOUT YAW DAMP AND LANDED. THE ON DEPARTURE TO LEAVE DR THE FAILURE WAS GONE AND SO WE CONTINUED WITH THE FLIGHT. AFTER TAKEOFF, A FEW SECONDS AFTER ENGAGING THE YAW DAMPER WE GOT RUDDER BOOST FAIL FOLLOWED BY YAW DAMP DISENGAGE.