As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BTB - LEFT BRAKE CHATTERING WHEN APPLIED. ACCOMPLISHED FIM 32-40 TASK 804 FOUND INTERNAL FAULT ON BCU 32431E AND 32431D. REMOVED AND REPLACED BCU PER AMM 32-45-01 ACCOMPLISHED RTS PER ANTI-SKID CHECK OK BLED BRAKES PER AMM 32-43-01. LEAK CHECK OK SERVICED FLUID AS REQUIRED TAXIED CHECK OK.