As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OKC - FLT 3949 - DURING DESCENT CREW RECEIVED LANDING GEAR AIR/GROUND FAIL MESSAGE ON EICAS. CREW DECLARED AN EMERGENCY AND LANDED WITH NO FURTHER INCIDENT REPORTED. MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR ELECTRONIC UNIT IAW EMB MM. OPERAITONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)