????:1???????????:??????????

2??????????????

3????????

4?????

5??????300??

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

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

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