As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MEM - FLIGHT 2998, THE CREW REPORTED A LANDING GEAR AIR/GND FAIL MESSAGE WHEN THE GEAR WAS EXTENDED. THE AIRCRAFT LANDED AT MEM WITHOUT INCIDENT WHERE THE AIRCRAFT WAS INSPECTED AND FERRIED TO IAH. IAH MAINTENANCE JACKED THE AIRCRAFT AND PERFORMED PROXIMITY SENSOR OPERATIONAL CHECKS WITH NO DEFECTS NOTED, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.