As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE - FLT 2861 - THE CREW REPORTED A LANDING GEAR AIR/GROUND FAIL MESSAGE ON THE EICAS WHEN THE GEAR WAS SELECTED DOWN AND THEN CLEARED ONCE THE GEAR WAS DOWN. MAINTENANCE INSPECTED AND REPLACED THE RIGHT NOSE GEAR DOOR ACTUATOR. OPERATIONAL CHECKS WERE GOOD.