As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT 2311 - THE CREW REPORTED A NR 4 BRAKE OVERTEMP MESSAGE IN FLIGHT. AN EMERGENCY WAS DECLARED AND THE ACFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND REPLACED THE NR 4 BRAKE TEMP SENSOR CONNECTOR. OPERATIONAL CHECKS WERE GOOD. (S)