As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE GREEN NLG LIGHT DID NOT ILLUMINATE WHEN GEAR WAS EXTENDED ON FINAL APPROACH TO CLE. THE NLG RED UNSAFE LIGHT EXTINGUISHED NORMALLY. A GO AROUND WAS PERFORMED AND THE GEAR WAS RECYCLED. THE NLG GREEN LIGHT CAME ON AND A NORMAL LANDING WAS MADE. MAINTENANCE REMOVED AND REPLACED THE NOSE GEAR DOWNLOCK SWITCH AND OPERATION CHECKED GOOD IAW MM 32-60-1.