As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT#2408 THE CREW REPORTED A LANDING GEAR AIR/GROUND FAIL MESSAGE AFTER TAKEOFF FOLLOWED BY ENGINE 1-2 REV. DISAGREE.THE AIRCRAFT RETURNED TO CLEVELAND AND LANDED WITHOUT FURTHER INCIDENT.MAINTENANCE INSPECTED AND REPLACED THE NOSE GEAR AIR/GROUND PROXIMITY SWITCH.THE NOSE STRUT WAS ALSO SERVICED TO PROPER LIMITS.OPERATIONAL CHECKS WERE GOOD.