As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE BRAKES WERE COMPLETELY INEFFECTIVE WHILE TAXIING. FLIGHT 4102 RETURNED TO THE GATE WHERE MAINTENANCE BLED THE BRAKES AND REPLACED THE ANTI-SKID CONTROL UNIT IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.