What was found
EXPERIENCED COMPLETE FAILURE OF NORMAL BRAKE SYSTEM WITH ILLUMINATION OF MASTER CAUTION AND ANTI-SKID INOP ANNUNCIATOR. THERE IS NO EVIDENCE OF FLUID LEAK. BRAKE ACCUMULATOR IS FULL WITH CORRECT PRESSURE. ANTI-SKID WIRING HARNESSES SEEM TO BE INTACT. THERE ARE THREE FALT INDICATIONS IN LEFT NOSE AVIONICS BAY: RIGHT TRANSDUCER VALVE AND CONTROL UNIT. T/S FAULTS TO THE ANTI SKID CONTROLLER AND RT WHEEL SPEED TRANSDUCER REMOVED AND REPLACED ANTI SKID CONTROLLER AND REMOVED AND REPLACED WHEEL SPEED TRANSDUCER.INSPECTED AND CLEANED EMERGENCY BRAKES SYSTEM CHECKS NORMAL PARTS THAT WERE REPLACED AS FOLLOWS CONTROL UNIT, ANTISKID DIGITAL PART # 9912489-9 S/N# 559 OFF AND SN# ON 506 TRANSDUCER ADAPTER ANTISKID WHEEL PART# 40-955 SN# 7128 OFF AND SN# ON 7464