What was found
(CAN) ON TAXI FOR DEPARTURE, THE ACFT BRAKES LOCKED UP AND WOULD NOT RELEASE. RESOLUTION FOUND PARKING BRAKE SELECTOR VALVE DOES NOT WORK ON NORMAL BRAKE, ONLY ON ALTERNATE. REPLACED SELECTOR VALVE IAW AMM 32-45-51.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) ON TAXI FOR DEPARTURE, THE ACFT BRAKES LOCKED UP AND WOULD NOT RELEASE. RESOLUTION FOUND PARKING BRAKE SELECTOR VALVE DOES NOT WORK ON NORMAL BRAKE, ONLY ON ALTERNATE. REPLACED SELECTOR VALVE IAW AMM 32-45-51.