As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI, THE BRAKES WOULD NOT WORK UNTIL THE PEDALS WERE PUSHED HALF WAY DOWN AND THEN THEY WOULD GRAB ABRUPTLY. THIS HAPPEN 2 TIMES FROM THE LT SEAT. SERVICED THE BRAKE MASTER CYLINDERS AND BLED THE BRAKES IAW MM 32-40-00. OPS AND TAXI CHECKS ARE GOOD AT THIS TIME.