As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. AUTO BRAKE INOPERATIVE, ALSO LOST NORMAL BRAKING ON TAXI INTO GATE BUT NORMAL BRAKING QUICKLY RETURNED. REPLACED THE BRAKE STEERING CONTROL UNIT & ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK IAW AMM 32-42-34 & 22-97-00.