As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT NR 2235, THE CREW REPORTED A LANDING GEAR AIR/GROUND FAIL MESSAGE PRECEEDED BY E1-2 REVERSER DISAGREE IN FLIGHT. THE CREW DECLARED AN EMERGENCY AND RETURNED TO CLEVELAND WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND REPLACED THE NOSE LANDING GEAR WOW PROXIMITY SENSOR. OPERATIONAL CHECKS WERE GOOD.