What was found
CLT - FL846 - CREW DID NOT RECEIVE NOSE GEAR GREEN LIGHT UPON GEAR EXTENSION. CREW RECYCLED THE GEAR AND ACCOMPLISHED A FLYBY OF THE TOWER WITH INCONCLUSIVE RESULTS. CYCLED THE GEAR AGAIN BUT DID NOT RECEIVE NOSE GEAR GREEN LIGHT. AIRCRAFT LANDED WITHOUT INCIDENT AND TAXIED OFF RUNWAY. MAINTENANCE REPLACED A SHORTED UPLOCK SENSOR, REPLACED THE PROXIMITY CONTROL UNIT AS PRECAUTIONARY, AND SWUNG THE GEAR. (M)