As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXPERIENCED UNCOMMANDED RUDDER INPUTS ALL PHASES OF FLIGHT WITH AUTO PILOT ENGAGED AND OFF AS WELL. GAINED ACCESS TO RUDDER YAW DAMPERS AND INSPECTED ACTUATORS. FOUND ACTUATOR LEAKING FROM SERVO RUDDER. REMOVED AND REPLACED ACTUATOR IAW B767 MM 22-21-02.4. FUNCTION AND LEAK CHECKED GOOD. ALL LEAKAGE AND FITTINGS LOOKED GOOD.