Its the APV building, used many times as you say for remote stands before sat 3 was built and before the top of sat 2 was in use, thats where we trained for our PA's.I remember boarding Air UK Leisure from there, all alone with 140 pax
in my first week, them were the days.
I cant remember its full name but something like
Advanced
Passenger something cant remember what the
V stands for.