What was found
AIRCRAFT WAS GROUNDED: DURING INITIAL CLIMB, AFTER LANDING GEAR HANDLE WAS PLACED IN THE "UP" POSITION, RECEIVED A RED "NOSE GEAR" LIGHT AND A GREEN "NOSE GEAR" LIGHT SIMULTANEOUSLY; THESE INDICATIONS WERE INTERMITTENT AND CONTINUED THROUGHOUT THE FLIGHT WHILE AT CRUISE ALTITUDE; THIS IS A REPEAT OCCURRENCE. ACCOMPLISHED FIM 32-61-00 FOUND NOSE GEAR DOWN SENSOR S0845 BAD. REMOVED AND REPLACED NOSE GEAR DOWN SENSOR, OPERTIONAL CHECK GOOD. PER AMM 32-61-51.