As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT END OF LANDING ROLL OUT RIGHT SEAT PILOT LOST BRAKE PRESSURE WITH PEDALS PRESSED 3/4 THROW. RELEASED BRAKES AND REAPPLIED WITH SAME RESULT (NO BRAKING). WHILE PRESSED THIS SECOND TIME BRAKE KICKED IN AFTER A ONE TO TWO SECOND DELAY AND THEN FUNCTIONED NORMALLY. COMPLETED ULTRA BRAKE BLEEDING PROCEDURES. OPS CHECK SATISFACTORY AT THIS TIME.