What was found
AFTER TAKEOFF WITH THE GEAR LEVER IN THE OFF POSITION ALL GEAR LIGHTS WERE EXTINGUISHED. DURING CLIMB AT 13572 GEAR UNSAFE RED LIGHTS ILLUMINATED FOR ALL 3 GEARS. AT 14132 WERE UNSAFE LIGHTS EXTINGUISHED. NO ABNORMAL YAW, VIBRATION, OR NOISE OBSERVED DURING EVENT. REMOVED AND REPLACED LANDING GEAR CONTROL MODULE LEVER IAW 32-31-11. PERFORMED LANDING GEAR TEST IAW AMM 32-32-00. OPS CHECK GOOD NO DEFECTS NOTED. ROTABLE PARTS CHANGE WAS INDICATED - TT 1431907 S/N OFF 03733 MODULE, LANDING OFF 29-3231-9-0010 3733 ON 29-3231-9-0010 0323