Originally Posted by
QRC3288
Fyi there are 3 77W configurations, two of which are "old" by your definition. (Aria is the name for the new config, known as 77J).
77A = F class equipped 4 class plane, "old" J
77K = non-F 3 class plane, "old" J
77J = non-F 3 class plane, "Aria" J
it is 77A since first class is being sold on the JFK to HKG route