As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - ON TAXI THE ANTI-SKID RELEASES AND GRABS WHEN SLOWING THROUGH ABOUT 10 KNOTS. THE TRANSITION IS NOT SMOOTH. MAINTENANCE FOUND A MDC FAULT FOR THE ANTI-SKID CONTROL UNIT. REPLACED THE ANTI SKID CONTROL UNIT. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.