As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH WHEN GEAR HANDLE SELECTED DOWN, NOSE LANDING GEAR GREEN LIGHT DID NOT ILLUMINATED. INITIATED A GO AROUND. CYCLED GEAR HANDLE WITH SAME RESULTS. PERFORMED MANUAL GEAR EXTENSION IAW POH. NLG GREEN LIGHT DID NOT ILLUMINATED. AN EMERGENCY WAS DECLARED. LANDING WAS UNEVENTFUL. MAINTENANCE TROUBLESHOT THE DISCREPANCY TO A FAULTY NLG DRAG BRACE DOWNLOCK SWITCH. REPLACED SAME, PERFORMED OPS CHECK AND AIRCRAFT WAS RETURNED TO SERVICE.