As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN'S LEFT BRAKE PEDAL HAS LARGE DEAD SPOT BEFORE BRAKING IS APPLIED. ONLY GET 500 PSI ON ACCLUMLATOR PRESSURE. NORMAL BRAKING GRABS & PULLS. PARK BRAKE NORMAL, F/O'S DOES SAME THING. AUTO BRAKE NORMAL.SERVICED THE ALTERNATE CONTROL BRAKING LOW PRESSURE CONTROL SYSTEM. SERVICED THE ALTERNATE CONTROL BRAKING LOW PRESSURE CONTROL SYSTEM.