What was found
PITCH TRIM INTERMITTENTLY MOVES TOWARDS FULL PITCH UP UNCOMMANDED, WHILE PITCH TRIM SELECTED IN PILOT POSITION. MOVING THE SWITCH TO OFF OR CO-PILOT POSITION DOES NOT STOP MOTION. SYSTEM WIRING WAS INSPECTED WITH NO DEFECTS NOTED. SYSTEM LIMIT SWITCHES WERE INSPECTED WITH NO DEFECTS NOTED. R & R PILOT PITCH TRIM CONTROL SWITCH AND PITCH TRIM ACTUATOR. ADJUSTED THE RT DOWN LIMIT SWITCH IAW AMM. GROUND OPS CHECKS DETERMINED TO BE SATISFACTORY. AIRCRAFT CURRENTLY WAITING FOR OPS CHECK FLIGHT TO BE PERFORMED. WILL UPDATE UPON COMPLETION OF OCF.