As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING NORMAL TAXI, WITHOUT TOUCHING THE BRAKES, AIRCRAFT ABRUPTLY CAME TO A HALT WHILE PULLING TO THE RT. AIRCRAFT WOULD NOT MOVE AFTERWARDS. REMOVED AND REPLACED NR 4 BRAKE ASSEMBLY IAW A300 MM 32-42-27. REMOVED AND REPLACED NR 3 AND 4 WHEEL ASSEMBLIES IAW A300 MM 12-37-32. LEAK AND OPERATIONAL CHECK SERVICEABLE.