What was found
WHEN LANDING GEAR WAS BROUGHT DOWN FOR LANDING, LOW BRAKE PRESSURE AND ANTISKD LIGHTS NEVER EXTINGUISHED. BRINGING THE MASTER CAUTION ON FLASHING. DEPARTED THE PATTERN AND RAN THE QRH. BRAKE CIRCUIT BREAKER WAS NOT TRIPPED. WHEN DESCENDING FOR LANDING, LOW BRAKE PRESSURE AND ANTISKD LIGHTS EXTINGUISHED, BUT PROCEEDED WITH EMERGENCY BRAKING PROCEDURE. REMOVED AND REPLACED THE MOTOR, HIGH AND LOW PRESSURE SWITCHES, HYDRAULIC PUMP ASSEMBLY, AND RELAY IAW MM 32-44-20.