As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED "AUTO BRAKE DISARM" LIGHT CAME ON IMMEDIATELY AFTER TOUCHDOWN. A BITE CHECK WAS PERFORMED ON THE ANTI-SKID/AUTO-BRAKE CONTROL UNIT (AACU). ACTIVE MAINTENANCE MESSAGE "BOX A/B" WAS DISPLAYED. FOLLOWING THE STEPS IN THE FIM, THIS MESSAGE INDICATES AN AUTOBRAKE CARD FAILURE AND A REPLACEMENT OF THE AACU. REPLACED AACU P/N 42-935-2. PERFORMED THE BITE TEST AND NO MAINTENANCE MESSAGES APPEARED.