There was an incident with an Air China getting lost and taxiing across the active at O'Hare, too. On that one it was very close to a disaster.
Actually it was a United 747 that got lost taxing in the fog and was told to stop when they told the ground controler where they THOUGHT they were. They stopped on the active runway. An Air China or maybe Korean Air 74 saw it at the last min, and at something like 90kts yanked it off the ground missing the other 74 by what must have been inches.
John