As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIC FLT 3576-CREW REPORTED AIR/GROUND FAIL MESSAGE IN FLIGHT. THE CREW RETURNED TO RIC WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE NOSE LANDING GEAR CENTERING UNIT INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE NOSE LANDING GEAR STRUT ASSEMBLY, AND PERFORMED A SATISFACTORY SYSTEM OPERATIONAL TEST. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.