?60?? ?????“???????????????”?????

???????????????????????1???????????29?,???????,????????(American Airlines)?????????????AA5342?,??????Bombardier CRJ700??????????????,????????????60?????????

???????????????????“????????????????”?

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29???,???(DCFD)?????????????????,?????????????????,???????????

?,?????????PSA??????,??????????H-60(??“??????????????”??)??(????????? ???) ????????????????????:???