As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW CREW REPORTED WHEEL NOT TURNING LIGHT ILLUMINATED. TAKEOFF ROLL WAS DISCONTINUED & AIRCRAFT RETURNED TO GATE. FOUND NR 2 MAIN ANTI-SKID TRANSDUCER DRIVE COUPLING PINS DETACHED. REATTACHED & SECURED ANTISKID DRIVE COUPLING PINS. SYSTEM GROUND CHECKED NORMAL OPERATION CLOSED.