As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2771, THE CREW REPORTED A LANDING GEAR AIR GROUND FAIL MESSAGE ON APPROACH. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT WHERE MAINTENANCE INSPECTED THE AIRCRAFT. PERFORMED LANDING GEAR EXTENSION AND RETRACTION TESTS WITH NO DEFECTS NOTED. AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.