As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HSV - FLIGHT 2855 - THE CREW REPORTED A LANDING GEAR AIR GROUND FAIL MESSAGE AFTER TAKEOFF. THE AIRCRAFT RETURNED TO HSV WHERE IT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS INSPECTED AND APPROVED FOR A FERRY FLIGHT TO IAH WHERE MAINTENANCE REMOVED AND REPLACED THE NOSE LANDING GEAR WOW PROXIMITY SENSOR, OPERATIONALLY TESTED WITH NO DEFECTS. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.