What was found
PILOT REPORTS ELEVATOR SEEMS TO CATCH WITH AUTO PILOT ENGAGED. WITH AUTO PILOT NOT ENGAGED ALL IS NORMAL. PERFORMED ELEVATOR FLIGHT CONTROL FREEDOM OF MOVEMENT CHECKS WITHOUT AUTOPILOT ENGAGED, NO DISCREPANCIES NOTED. OBSERVED ERRATIC SMALL MOVEMENT TO BE CAUSED BY THE ELEVATOR SERVO WHEN AUTOPILOT IS ENGAGED. REPLACED ELEVATOR SERVO PER MM 22-20-05. P/N 622-5734-002, S/N OFF 5983, S/N ON 5760, ALL PANELS SECURED.