Originally Posted by freezingflyboy

Last time I went through NRT (probably 10 years ago and as a pax) there was a "transfer" area where you never really "cleared" customs if you were just connecting onward out of Japan. Not sure if that still exists or applies to working crew or not but if available, it definitely saves you the shore pass shuffle.

All that said, I HAVE heard of people doing the iron man as you described so it is doable.