What was found
AFTER TAKEOFF WITH LANDING GEAR LEVER IN THE UP POSITION, RIGHT MAIN GEAR RED LIGHT ILLUMINATED. WHEN GEAR LEVER MOVED TO OFF, RIGHT MAIN GEAR EXTENDED AND WENT TO GREEN POSITION. GEAR LEVER WAS THEN POSITIONED TO UP AND GEAR RETRACTED. INSPECTED AND REPLACED RIGHT MAIN GEAR UPLOCK ACTUATOR AND CYCLED GEAR SEVERAL TIMES PER BOEING M/M.