Is there no "AS" brevet on Tristar and Voyager?
The Stewards have a trade badge on their No1s in the same fashion that Mountain Rescue - Aeromed - Bomb Disposal do.
The Trolley Dollies have taken to wearing this as a two winged brevet on their flying suits which looks at a distance like Foreign National pilots wings or RN Aircrewmans wings. You can make up your own mind as to the validity of such adornment:
I am sure the AAC had a door gunners brevet which was official. However a few years ago the whole AAC Door Gunner / Crewman thing went through a metamorphosis and I think settled on a single brevet the composition of which I am unsure.