As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 2489 - EWR - CREW REPORTED OB BRAKE INOP MSG ON EICAS AND DECLARED EMERGENCY. ACFT LANDED WITHOUT INCIDENTS. EWR MX REMOVED AND REPLACED BRAKE CONTROL UNIT AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.