As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN LANDING GEAR EXTENDED, NOSE GEAR UNSAFE LIGHT ILLUMINATED. THE RED INTRANSIT LIGHT WAS EXTINGUISHED ALONG WITH THE UNSAFE LIGHT. THE PROBLEM CORRECTED BY ITSELF. THE NOSE LANDING GEAR UNSAFE BULB WAS LOOSE IN THE SOCKET. REPLACED BULB AND PERFORMED A GEAR SWING IAW DC-9 MM 32-60-00. OPS CHECKED GOOD.