As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4611, DURING TAXI BRAKES SEIZED AND COULD NOT BE RELEASED. AIRCRAFT TOWED BACK TO GATE. AIRCRAFT REMOVED FROM SERVICE. FOUND NR 4 NORMAL BRAKE LINE DISCONNECTED AND DAMAGED. REMOVED AND REPLACE NUMBER 4 NORMAL BRAKE LINE IAW EMB 32-10-01. OPERATIONAL CHECK GOOD AND TAXI CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.