As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: AT ALTITUDE WHEN AUTOPILOT A ENGAGED, AIRCRAFT C HAD A 2G PITCH UP FOLLOWED BY AUTOPILOT DISCONECT. AUTOPILOT B WORKED NORMAL. REPLACED HYDRAULIC AUTOPILOT AILERON CONTROL ACTUATOR AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 22-11-26