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东航飞机引擎罩破裂 空中44分钟他们经历了什么

2017-06-13 14:50:20   央视新闻

事故可能诱因三:人为因素维修保养不当

历史上,也曾经有人为因素引发此类故障,飞机像汽车一样需要定期维修保养,在飞行前还要进行检查,如果这些环节出了问题也会导致事故,但这种情况比较少见,非人为因素还是此类事故的主要原因。

目前,本架东航飞机发生的事故到底因何原因还需要进一步调查。

专家:单发失效仍可以保证飞机安全返航

不过,专家表示:大型客机至少是双发动机,还有三发和四发的机型,一个发动机出现故障后,只要及时发现,正确处理,还是可以保证飞行安全的。

航班为何高空盘旋迂回返航?

根据事后公布的飞行路线图,MU736航班返航过程中有一个迂回盘旋的过程,期间航班依然保持一定的高度和速度,最高飞行高度大约为5900英尺,最高航速大约为320节。为什么返航的MU736会呈现出上述特征?

航空专家王亚男表示,在安全可以得到保障的情况下,航班高空盘旋是在执行空中放油,这是一个标准程序。

空中放油:降低重量防起火爆炸

放油过程就是把飞机体内多余的油料排掉,一方面可以降低飞机的着陆重量,让飞机在降落的时候尽可能地不伤及起落架和飞机的机体;另一方面是降低飞机起火和爆炸的可能。

动力出故障维持高度速度是法则

飞机在动力系统出现故障时,飞行员有一个黄金法则,就是维持飞机的高度和速度。所以在这种故障的情况下,肯定会保持既有的高度,以一定的速度平稳飞行,寻找合适地降落时机。

而且放油也是有规定的区域的,避免排放的燃油对周边的环境和其它航空器造成影响。所以飞行员不会做大幅度的动作,比如急速下降,降落等,这些都是不专业的做法。从这次东航飞行员的处置上来讲,他们做的是很熟练和专业的。

责任编辑:陈倩 CN030
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