What was found
RT GEAR UNSAFE LIGHT CAME ON DURING UPLATCH CHECK AFTER TAKE-OFF. FOLLOWED ABNORMAL PROCEDURE AND RECYCLED GEAR. UNSAFE LIGHT REMAINED ON WITH GEAR HANDLE UP AND RT HYDRAULIC SYSTEM IN 'HIGH', RT GEAR LIGHT REMAINED ILLUMINATED. ON DESCENT AT FL 250, RT GEAR UNSAFE LIGHT WENT OUT AND AUTO SPOILER ACTUATOR CYCLED BACK TO THE ARMED POSITION. CLEANED PROXIMITY SWITCHES AND LUBRICATED MLG AND DOOR UPLATCH MECHANISMS IAW DC-9 MM 12-61-0. PERFORMED GEAR EXTENSION AND RETRACTION TEST SEVERAL TIMES IAW DC-9 MM 32-30-0. NO DEFECTS NOTED. AUTO SPOILER ARM, OPS CHECKED GOOD.