What was found
ACFT NORMAL BRAKING SYSTEM INOPERATIVE. DURING TAXI OUT BRAKES WERE VERY MUSHY AND HAD MINUMAL PRESSURE. WITH EITHER THE CAPT BRAKES APPLIED OR THE CO-PILOTS BRAKES APPLIED THE PEDDLES WOULD GO TO THE STOPS AND ONLY HAVE APPROX 400 PSI MAX PRESSURE. AUX BRAKING SYS HAD 2000 PSI PER SIDE. PRIMED AND BLED THE MASTER CYLINDER CONTROL AND THE NORMAL BRAKE SYS IAW THE MM 32-40. SERVICED MAIN HYD RESERVOIR TO PROPER LEVEL, TAXIED ACFT USING THE PILOTS AND COPILOTS BRAKES. OP AND LEAK CHECKED GOOD.