As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, WITH REVERSE THRUST APPLIED, UNABLE TO OBTAIN BRAKING FORCE UNTIL ANTI-SKID TURNED OFF. RELEASED BRAKES AND OPS CHECKED ANTI-SKID SYSTEM; NO DEFECTS NOTED AND SYSTEM CHECKED NORMAL. AIRCRAFT FERRIED FROM BOS TO IAD AND BRAKING SYSTEM REPORTED NORMAL UPON LANDING.