As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT - FLT 7900 - DURING MAINTENANCE TEST HOP THE NOSE LANDING GEAR GREEN LIGHT WOULD NOT ILLUMINATED DURING FLIGHT WITH ANY GEAR EXTENSION METHOD, NORMAL OR NON NORMAL. THE NOSE GEAR WAS VERIFIED DOWN AND LOCKED USING THE NOSE GEAR VIEWPORT. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE PROXIMITY SENSOR CONTROL BOX. (M)