As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT WITH AUTOPILOT ENGAGED AIRCRAFT ROLLS BACK AND FORTH AS IF SEARCHING FOR LEVEL FLIGHT. FOUND GROUND STUDS TG532 AND TG533 AT YSAC COMPUTERS NORMAL. FOUND GROUND STUDS TG511 AND TG521 AT LOWER YD ACTUATORS WITH HIGH RESISTANCE. REMOVED AND REPLACED GROUND STUDS WITH NEW. LOWER YD OPERATIONAL CHECK NORMAL. WORK IAW CESNA 750 MM CHPT 20-20-03