What was found
AFTER NORMAL LANDING THE LOW BRAKE PRESS ANTI-SKID INOPERATIVE ANNUNCIATOR ILLUMINATED. NORMAL BRAKES NOT AVAILABLE DURING TAXI, HAD TO USE EMER BRAKES TO STOP ACFT. PUSHED IN CB, RAN POWER BRAKES 24X, COULDN'T DUPLICATE. IAW AMCC REPLACED MOTOR WITH AN OVERHAULED UNIT. REPLACED PUMP ASSEMBLY WITH NEW. BLED, SERVICED & PERFORMED OPERATIONS CHECK ANTI-SKID SYS IAW MM. OPERATIONS CHECK & LEAK CHECKS GOOD. SERVICED EMER AIR BOTTLE, LEAK CHECKED GOOD. PARTS CHANGED, BRAKE PRESS PUMP ASSEMBLY PN 9912166-3, SN 6992. HYD MOTOR PN MP50B1, SN 4191, COUPLING 6517108-4, NSN, RETAINER MS28774-129, NSN, RETAINER MS28774-130, NSN, O RING NAS1611-129, NSN, O RING NAS1611-130, NSN.