As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED WHILE TAXING WITH ANTI SKID ON BRAKING IS INTERMITTENT PEDALS GET STIFF AND NO BRAKING IS APPLIED, WITH ANTI SKID OFF BREAKING IS NORMAL. C-CHECKED ANTISKID ACCUMULATOR PRESSURE AND SERVICED HYD RESERVOIR OPS CHECK GOOD.