What it’s like inside your plane’s hidden ‘crew rest’
I think on the A340 the crew rest area was actually in the hold, accessed by stairs down from the passenger cabin:https://www.airliners.net/photo/Air-France/Airbus-A340-3/214...It was integrated into a cargo pallet, so could be removed on planes serving routes where it wasn't needed:https://www.airliners.net/photo/Lufthansa/Airbus-A340-313/43...