As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT REPORTED THAT THE BRAKE PRESSURE WAS BETWEEN 175 TO 200 PSI PRIOR TO LANDING. DURING INVESTIGATION, THE STEERING SELECTOR VALVE WAS FOUND TO BE DEFECTIVE, CAUSING THE BRAKE RETURN LINES TO BE PRESSURIZED. INTERNAL LEAKS IN THE STEERING CONTROL VALVE CAUSED HIGH PRESSURE IN THE RETURN LINES OF THE BRAKES. STEERING CONTROL VALVE WAS REPLACED AND BRAKE AND STEERING SYSTEMS WERE CHECKED FOR PROPER OPERATION. AIRCRAFT WAS RELEASED TO SERVICE.