As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT HAD A HISTORY OF THE NLG RED UNSAFE LIGHT COMING ON IN FLIGHT. THE M983 LOGIC CARD HAD BEEN REPLACED PREVIOUSLY, BUT THE PROBLEM WAS REPEATED. MAINTENANCE REMOVED AND REPLACED THE R374 LATCHING RELAY AND THE NOSE GEAR LOCK SENSOR. SYSTEM FUNCTIONAL CHECKS WERE GOOD.