As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH NOSE GEAR GREEN ANNUNCIATOR LIGHT DID NOT ILLUMINATE. INDICATOR LIGHT BULB TEST OKAY. FLAPS WERE PLACED TO FULL DOWN POSITION AND RECEIVED 'GEAR UNSAFE' AUDIBLE WARNING. COMPLETED MANUAL GEAR EXTENSION PROCEDURE PER CHECKLIST. EMERGENCY DECLARED AND LANDING WAS UNEVENTFUL. AIRCRAFT WAS RETURNED TO SERVICE.