As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 3665 - DURING TAXI, NORMAL BRAKE FAILED TO STOP AIRCRAFT TWICE. EMERGENCY BRAKES STOPPED AIRCRAFT. THERE WERE NO FAULTS ON ANY SYSTEM. ACCUMULATORS WERE UP AND ANTI-SKID CHECKED OK. BLED ALL FOUR BRAKES. GROUND OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (X)