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美国海军主力战机老化 机舱内缺氧次数显著增加

2017-06-17 13:27:44   新华社新媒体专线

(原标题:老化!美海军主力战机机舱内缺氧次数显著增加)

美国海军“布什”号航母上起飞。(新华/美联)">  3月22日,一架美军F-18战机准备从航行在波斯湾水域的美国海军“布什”号航母上起飞。(新华/美联)

新华社北京6月17日电美国海军15日公开一项调查报告显示,最近几年海军旗下F-18“大黄蜂”战机和T-45“苍鹰”教练机机舱内出现缺氧状况的次数有所增加。

【故障频发】

《星条旗报》15日报道,今年早些时候,位于得克萨斯州、密西西比州和佛罗里达州的海军飞行员教练拒绝利用T-45训练机培训学员,原因是机舱内“提供的氧气被污染,已经到达令人无法接受的地步”。3月底,海军内部展开相关调查。

15日,海军公布了节选的调查结果,内容涉及F-18战机和T-45教练机的供氧故障问题。

统计数字显示,2012年,T-45教练机出现13起供氧故障事件,2016年出现38起,2017年前五个月出现21起;2012年,F-18战机出现57起供氧故障事件,2016年出现125起,2017年前五个月出现52起。

海军的调查报告说,4名F-18战机飞行员的丧生与机舱供氧故障存在关联。

T-45教练机出现的类似故障尚未造成人员丧生,但在2016年8月,一名教练员和一名学员在飞行途中弹射出舱。提及这一事件时,得以公开的海军报告对事件原因做了特殊处理,但指出位于得州金斯维尔的海军飞行员训练基地曾提出异议,强调这一基地“拒认有关调查结果,领导层未能了解到T-45教练机(供氧系统)问题的严重性”。

【寻求改进】

T-45教练机。(图片来源:military.com网站)

海军方面解释,随着其军机的不断老化,这些军机也在接受更为频繁的检查和维修,例如对机翼和引擎的检查。

只不过,海军内部以往并没有对供氧系统多加注意,供氧系统滤件的老化或滤件未被清理干净可能是导致供氧系统故障的原因。今后,相关人员将更加注重检查军机供氧系统的所有部件。

缺氧故障并非只影响了美国海军飞行员,美国空军几天前宣布,因缺氧故障而无限期停飞亚利桑那州卢克空军基地内的F-35战机,直至故障调查完成。

卢克空军基地的F-35A型“闪电-II”战机从5月2日到6月8日连续发生5起故障。这5起故障均发生在飞行过程中。飞行员察觉舱内缺氧,启动备用供氧系统,安全飞回基地,战机和人员均无恙。尚不清楚导致缺氧的原因。

军方本月9日决定,卢克基地内上述型号的55架战机临时停飞。12日,空军方面宣布,停飞令无限期延长,直至故障调查完成。

卢克基地是全球最大的F-35基地,美国及盟国的F—35飞行员在此接受训练。

责任编辑:曲格林 CN064
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