As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4732 THE CREW NOTICED THE BRAKES GRABBING. THE CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED THE BRAKE CONTROL UNIT IAW EMB-140 AMM 32-41-02, AND PERFORMED MAIN BRAKE FUNCTIONAL CHECK IAW AMM 32-41-00. ALL OPERATIONAL TESTS GOOD, NO FURTHER DEFECT NOTED. AIRCRAFT RETURNED TO SERVICE.