As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAXI, AIRCRAFT SUDDENLY PULLED TO THE LEFT. AIRCRAFT HAD TO STOP AS TAXIING NO LONGER POSSIBLE. NR1 BRAKE AND WHEEL REPLACED. INSPECTION OF BRAKE FOUND THAT THE STATIONARY DISC WAS BROKEN AND THE LOOSE PART WAS JAMMING THE WHEEL.