????:1??????????????:?????95?

2?????

3?????????????

4???????

5?????????

???2??????????????????????15?? ????????????????,?14???,??(NTSB)????????????????,??,??????????????????“??????”??,??“??”?

????,1??29????,??“???”??????????????????????,??,??,?????67????

??????????????????????1?29??,?,????1??30????????????? ????? ??

?14??,“??????????????”???????,???????????,????

?,?????,??????“????????????”??????,???????????????????????????,???????????????????????????,???????

????????????,??????,????????????“??????????”????,?????????????????????,“???????”???????????

??????????????,????????????“??”??????????????????,?????,??????????????,???

??,?,????????????????????????,??????????????????????

???,??????????????????????278????????(85 ?),???????????????,??????,“??????”

????:????