As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLT 5665 THE CREW REPORTED A LANDING GEAR AIR/GROUND FAIL MESSAGE INBOUND INTO CLE. MAINTENANCE INSPECTED AND REPLACED THE RIGHT MAIN GEAR DOOR 2B PROXIMITY SWITCH ATTACHMENT FITTING AND HARDWARE. ADJUSTED PROXIMITY SWITCH AND OPERATIONAL CHECKS WERE GOOD.