What was found
WHEN GEAR HANDLE SELECTED UP GEAR UNSAFE LIGHTS DOES NOT COME ON, BUT HYDRAULIC PUMP TURNS ON AND ALL 3 GREEN LIGHTS EXTINGUISHED AT THE SAME TIME, TEST LIGHTS WERE PUSHED AND ALL LIGHTS CHECKED OK, NEXT PUMP STOPPED AND ALL INDICATIONS NORMAL, WHEN GEAR HANDLE SELECTED DOWN ALL INDICATIONS ARE NORMAL. REPLACED LANDING GEAR CONTROL UNIT.