As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOPILOT/YAW DAMPER DISENGAGED ON IT'S OWN IN FLIGHT AND COULD NOT RE-ENGAGE. YAW DAMP WAS ABLE TO RE-ENGAGE INTERMITTENTLY ON 'B' CHANNEL ONLY. REMOVED AND REPLACED AILERON SERVO BRACKET IAW MM CHA 22-10-00. TENSION, RIGGED, OPS CHECKED GOOD.