As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LEFT HAND BRAKES WERE REPORTED FROM THE CREW AS SPONGEY WHEN SELECTED, DURING THE TAXI FOR TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND BLED THE BRAKE SYSTEM, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-42-00. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.