What was found
AFTER SELECTING GEAR DOWN, THE CREW RECEIVED NO NOSE GEAR DOWN AND LOCK INDICATION. A LAMP TEST THEN INDICATED THAT THERE WAS A BURNED OUT LIGHT. AS A PRECAUTION, THE CREW DECLARED AN EMERGENCY AND REQUESTED A FLY BY FROM ATC. THE TOWER CONFIRMED THAT THE GEAR WAS DOWN. FLIGHT 4117 THEN LANDED WITH NO FURTHER INCIDENTS. MAINTENANCE INSPECTED AND REPLACED THE LAMP IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-00-00. OPERATIONAL TEST WERE PERFORMED AND THE AIRCRAFT WAS THEN RELEASED FOR SERVICE.