As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST PRIOR TO ROTATION, THE AIRCRAFT VEERED LEFT. AIRCRAFT RETURNED TO FIELD. AFTER LANDING BRAKE NR 1 REACHED 390 DEGREES WHILE BRAKE NR 2 ONLY REACHED 190 DEGREES. REMOVED AND REPLACED NR 1 MAIN LANDING GEAR BRAKE PER AIRBUS MAINTENANCE MANUAL 32-42-27-000-001. TAXIED AIRCRAFT. OPS CHECKED GOOD.