Well I have no idea either.I know in March hnl -dfw my 76h was changed to a 767int. and I lost my first class seat.I then was assigned a Bus. seat.
I had upgraded with miles at booking.
When I asked at the gate for my seat back they said this was a upgraded product and be happy with what I have.
I do know that before the door closed a non rev took a seat in first.I think the gate contols the seating in case of a aircraft change but who really knows what happens.

[This message has been edited by PETEFLYS (edited 08-07-2002).]