What was found
FAT - NOSE GEAR 'GREEN' GEAR DOWN POSITION INDICATOR ILLUMINATED WITH GEAR IN THE RETRACTED POSITION ON DESCENT. BOTH NOSE GEAR 'RED' INTRANSIT LIGHT AND 'GREEN' GEAR DOWN LIGHT REMAINED ILLUMINATED FOLLOWING GEAR EXTENSION. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NOSE GEAR DOWNLOCK MICROSWITCH. GEAR POSITION INDICATIONS NORMAL DURING GROUND RETRACTION CHECK. AIRCRAFT RETURNED TO SERVICE. (M)