Originally Posted by
timezonehopper
If it's a 772 it will be a 4-class configuration since First is offered on that route.
Not always; I was booked in F from NRT-LHR a couple of years back and the 773 was replaced by a 3-class 772. BA rebooked me into JAL F, and very nice it was too. But I do agree that is a pretty rare occurance!