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东航一航班飞机外壳现大洞 机组果断处置及时返航

2017-06-14 08:05:39   北京晨报

前晚,有微博爆料称,东方航空一架悉尼飞往上海的MU736航班起飞后不久,飞机的左侧发动机机匣损伤。东航官方微博证实此事,表示机组发现左发动机进气道机匣损伤,果断处置,航班及时返航,人机安全,东航已妥善做好旅客的后续服务保障。

乘客讲述 很开心能再回到地面

从网友上传的图片可以清晰地看到,飞机发动机外侧边缘出现了一个很大的洞,豁开一个大大的口子。6月11日北京时间18时41分该航班从悉尼起飞,有消息称是航班上的安全员最先发现问题,并及时报告了机组。飞机转了一圈后在北京时间19时24分安全落地,落地后发现飞机发动机机匣破了大洞。

值得一提的是,东航机组在紧急沉着处理状况的同时,还通过无线电提醒机场跑道上可能遗留有发动机抛出的碎片,这对其他起降航班可能会造成威胁,这一专业且负责之举,被网友纷纷点赞。

据媒体报道,有乘客回忆,当时能听到很大声响,“我们起飞了,听到突突突的声响,声音非常大,没有人受伤,但是我有些紧张,好像闻起来像烧着了。”“飞机刚起飞,有很大噪音,噪音持续了大约2到3分钟,接下来的一小时,我们围着悉尼转。非常紧张,也很幸运,我想我们都很开心能再回到地面。机组人员很棒,非常冷静、镇定。”

业内分析 有可能是复合材料引发

“飞常准”显示,执飞MU736航班的是B-5942号空客A330-200型飞机,机龄三四年。飞机配备Trnet 772型发动机,该型号发动机在全球已发生数起类似故障。距离最近一次是今年5月15日,埃及航空执行MS955航班任务的飞机在滑跑过程中出现严重破损。当天,一架埃及航空尾号为SU-GCI的A330-200周一在由开罗机场起飞执行前往北京的MS955航班加速滑跑时,其一号罗罗Trent 700引擎出现非包容性失效,碎片喷射出引擎,击穿引擎蒙皮。

爱飞行航空俱乐部董事长、资深机长陈建国分析称,综合各个方面的信息来看,发生故障的位置在发动机进气道,而不是在风扇转子的周围,因此可以基本排除风扇叶片损坏的可能。从这个角度来看,很有可能是因为进气道使用了复合材料,而这些复合材料可能发生了问题进而导致发动机进气道塌陷或破损,破损的材料被强大的气流吸入发动机,打伤涡轮叶片引发发动机故障。

媒体透露 “老司机”和机组立大功

对于此次返航事件,民航自媒体“航空物语”发布微博称,此次航班的机长为东航飞行培训公司总经理,“就是培养飞行员的单位,老司机了”,机长和全体机组为飞机安全返航立下大功。

“航空物语”主编余明表示,该机型是“目前世界上最畅销的宽体客机之一,我国也有很多架在运营。飞机本身的安全记录良好。但具体到发动机出现如此严重的故障是非常罕见的,而且一般飞机上都安装了至少两台发动机,在一台发动机损害的情况下,飞机有能力安全降落。”

余明认为,破损原因有很多种,一是发动机自己内部出现故障,比如零件飞脱或者破裂,外皮给弄破了。但同时也不能排除是鸟撞等外部原因导致发动机出现破坏。具体还要等后续调查清楚才能下结论。

北京晨报记者 吴婷婷 综合央广报道

(原标题:飞机外壳现大洞 “老司机”立功)

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