Originally Posted by
Tokyoite
My reading of that doesn't help clarify whether airside transit is explicitly permitted. Does "landing" refer to the physical act of arriving at the airport or does it refer to it in the immigration sense?
In theory, is a quick turn at HND/NRT possible? Not that anyone would or should be doing MRs right now.
FWIW, I've heard that airside transit is possible but do not have anything official to back it up. One does have to take into account that NRT closes overnight though.