As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED THAT THE BRAKES WERE GRABBING AND CHATTERING, ESPECIALLY LEFT SIDE. SHAKING THE AIRFRAME AS WE TRIED TO TAXI EVEN WITH FEET ON THE FLOOR. MAINTENANCE FOUND THE #1 BRAKE ASSEMBLY WAS DAMAGED AND REPLACED IT PER AMM 32-42-27.