As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BEFORE LANDING PILOT CHECHED BRAKES AND FOUND THAT RT BRAKE WENT TO THE FLOOR WITH NO BRAKE PRESSURE. TRIED PARKING BRAKE AND STILL HAD NO BRAKE PRESSURE. NO EMERGENCY WAS DECLARED BUT LOCAL FSS INFORMED AND A FIRE TRUCK WAS DISPATCHED AS A PRECAUTION, AN UNEVENTFUL LANDING WAS MADE. MX FOUND THAT THE RT BRAKE LINE FAILED, A NEW LINE WAS INSTALLED AND OPERATIONAL CKECK WAS NORMAL.