What was found
PERFORMED STABILIZER TRIM FUNCTION CHECK DURING 100-HOUR INSPECTION. ACTUATOR FAILED CHECK BECAUSE TRAVEL WAS OUT OF LIMITS. ALSO, THE ALTERNATE TRIM WAS INOPERATIVE. THE OWNER STATED THE AUTOPILOT WOULD NOT STAY ENGAGED IN-FLIGHT. FOUND MOTOR USED FOR AUTOPILOTS/ALTERNATE TRIM WAS OPEN. REPLACED ACTUATOR, OPS CHECK GOOD. HIGHLY RECOMMEND THAT FUNCTION CHECKS BE PERFORMED PER MM. THESE ARE VERY NEW AIRCRAFT AND SHOULD BE FOLLOWED CLOSELY.