What was found
PERFORMED CAT III AUTOLAND WITH LOW BRAKES. DURING ROLLOUT PHASE, AIRCRAFT PULLED TO THE RIGHT WHEN AUTO BRAKES APPLIED. REQUIRED TO DISCONNECT AUTOPILOT AND RECENTER AIRCRAFT. WHEEL ECAM PAGE SHOWED RIGHT MAIN GEAR TEMPERATURE BETWEEN 450-500 DEGREES DEGREES. LEFT MAIN GEAR SHOWED READINGS AROUND 15 DEGREES DEGREES. SEEMED LIKE LEFT AUTOBRAKE SYSTEM DID NOT WORK AND THE RIGHT SIDE DID MOST/ALL OF THE BRAKING. PERFORMED BLEED STEPS ON THE BRAKE SYSTEM RESEVIOR (4300), TO THE DUAL ALTERNATE BRAKE DISTRIBUTION VALVE. FOUND AIR IN BOTH LEFT AND RIGHT SIDES OF THE DUAL ALTERNATE BRAKE DISTRIBUTION VALVE. BLED AND SERVICED RESERVOIR. PISTON IS NOW INSIDE OF SERVICEABLE BAND OF THE BRAKE SYSTEM RESEVIOR (4300), PERFORMED CHECK OF REMOVED AND REPLACED BRAKE AUTOMATIC SELECTOR. PERFORMED LEAK CHECK OF AUTOMATIC SELECTOR (1300). FOUND 2 EA. LEAKS. RESEALED 90' PRESS ELBOW AND RETORQUED RETURN B-NUT PER MM 32-42-13-04. AUTOMATIC SELECTOR LEAK CHECK NORMAL. REPLACED BRAKE SYSTEM CONTROL UNIT (29GG) MM 32-42-72-04. BITE TEST NORMAL-NO FAULTS. A/C OK FOR SERVICE PER MM 32-42-00-05.