?????????????1???29?????????,??,???????(American Airlines)???????AA5342???????,????????????Bombardier CRJ700???,??????60??
??????????????????????“?????????”?
?,????,???????
29???????????????????,?????????????(DCFD)???????????????????????,???,??????????????????
???,???PSA????????????????,????????????????H-60(?????????????“??”?)??(??????????? ??????) ???????????:??????????????
??????????404????(?)
?????????????????
??????????404????(?)
??:??????????????????????
????????:??1??8000?
?????????????????????
???????10????3-2????????
????????????200???????
??????????????8???
2017???????????:??????
???:????????????????
?????????68?????????????
??????:???????????????
????????????200???????
??????????????????????
??:?????????????
??:??????????????
??:??????????????
??????????????????????
??:??????????????????
?????????:????????????
??3?????????0.2%
??2??????2?1600?????2?
??????????????????????
??:???????????????????