As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE TAXIING FOR DEPARTURE, POWER BRAKE CIRCUIT BREAKER POPPED FOLLOWED BY A "LO BRAKE PRESS/ANTISKID INOP" CAUTION LIGHT AND LOSS OF BRAKING PRESSURE. REPLACED POWER BRAKE WIRING IN NOSE & POWER BRAKE CIRCUIT BREAKER. WORK DONE IAW MM 20-10-04