If you see one of these in CLT or PHL, does that mean it has to be arriving fromdeparting to PHX? 아니면 캑터스는 PHL과 CLT를 오가는 노선에서 기존 아메리칸 웨스트 항공기를 사용하나요? My understanding was that the legacy Amer West planes would stay hubbed in PHX and legacy US Air hubbed in PHL.