As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A NOSE LANDING GEAR UNSAFE INDICATION LIGHT ILLUMINATED IN FLIGHT. THE LIGHT EXTINGUISHED WHEN THE LANDING GEAR WAS SELECTED DOWN DURING APPROACH FOR LANDING. MAINTENANCE INSPECTED AND REPLACED THE PROX SENSOR CONTROL UNIT IAW DC-9 MM 32-60-01. OPS CHECKED GOOD.