As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON LANDING AND TAXIING TO MX BASE, PILOT APPLIED PRESSURE TO THE BRAKES, AND FOUND THAT THEY HAD FAILED. FOUND THAT THE SHAFT OF THE BRAKE MASTER CYLINDER HAD SHEARED. THERE WAS NO FURTHER INCIDENT. MX REPLACED THE MASTER CYLINDER AND THE ACFT WAS RETURNED TO SERVICE.