What was found
NORMAL LANDING. DURING TAXI HAD TOTAL BRAKE FAILURE WITH LOW BRAKE & ANTISKID INOPERATIVE LIGHT AND POWER BRAKES CIRCUIT BREAKER OUT. USED EMERGENCY BRAKE TO STOP THE ACFT. FOUND POWER BRAKE C/B POPPED. GAIN ACCESS TO POWER BRAKE PUMP MOTOR. RESET CIRCUIT BREAKER AND OPERATED BRAKES, CIRCUIT BREAKER DID NOT TRIP. BLED ANTISKID BRAKE SYS, SERVICED BRAKE RESERVOIR, SERVICED GEAR/BRAKE N2 BOTTLE. CIRCUIT BREAKER DID NOT TRIP DURING THIS PROCEDURE. FROZE MOTOR AND OPERATED BRAKES-MOTOR RAN NORMAL, SHOOK DOWN WIRING, CIRCUIT BREAKER DID NOT TRIP, MOTOR RAN NORMAL. REPLACED PUMP MOTOR, ALSO REPLACED MOTOR COUPLING DUE TO MINOR WEAR. WORK PERFORMED IAW MM 32-42-00, REV29 AND 32-42-06, REV 29. LEAK & OPS NORMAL.