As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - CREW REPORTED LEFT AND RIGHT INBOARD AND OUTBOARD ANTI SKID LIGHTS ILLUMINATED WITH LANDING GEAR EXTENSION. FLIGHT LANDED ORD WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED ANTI-SKID CONTROL BOX. SYSTEM GROUND CHECK NORMAL OPERATION.