As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW RECEIVED BRAKE SYSTEM FAULT IN CRUISE FLIGHT AND DECLARED AN EMERGENCY ON LANDING AS A PRECAUTION. AIRCRAFT LANDED WITHOUT INCIDENT BUT REQUIRED TOW TO GATE. MAINTENANCE REMOVED AND REPLACED THE BRAKE / STEERING CONTROL UNIT (BSCU) IAW AIRBUS MAINTENANCE MANUAL 32-42-34.