They are the same 333s doing transatlantic service (and every once in a while SEA-NRT).
This is the first overnight delay I've heard of ex-HNL. I was on the flight last Sunday when one of the brakes wouldn't disengage. We had already pushed back, and spent an hour with other jets taxiing around us as the mechanics tried to fix the problem. The final solution involved rocking the jet back and forth... a new experience for me.
Chris