美军所有 F-22停飞-----氧气系统?

氧气系统提示关注的F -22解封

斯蒂芬特林布尔


美国空军已经停止飞行比约在船上制氧系统可能出现的故障问题无限期所有洛克希德马丁公司的F -22战斗机。

这一独立的向下的顺序5月3日发布的空战司令部(ACC)的首席艮弗雷泽来自约六个星期后的F-22战斗机被限制在25,000英尺以下,由于同样的问题飞行。

该命令生效,直到“进一步通知“,行政协调会说。

“该standown是一个审慎的做法氧气系统故障后最近的报告,“弗雷泽在一份声明中说。

虽然F- 22仍停放,调查组将继续以确定故障原因,该声明说。

行政协调会强调,解封为了在技术上不被认为是“接地“,这只有在响应发生了灾难性的技术问题。阿解封是自愿和预防。

尽管保留在地面的F- 22,行政协调会认为,解封订单将不会改变空中力量的能力来执行空中优势,如警戒任务。这架F- 22仍然是对“国家安全任务定向“可用,行政协调会说。一次性批准的航班也可以由主要负责人的命令,inclduing定位航班。

空军已经飞了F-22战斗机运作超过五年,有超过150个已经开始服役。全部186架F -22战斗机的订单,预计将于明年初交货。

Oxygen system concerns prompt F-22 stand-down

By Stephen Trimble


The US Air Force has stopped flying all Lockheed Martin F-22s for an indefinite period over concerns about a possible glitch in the onboard oxygen generation system.

The stand-down order issued on 3 May by Air Combat Command (ACC) chief Gen Will Fraser comes about six weeks after the F-22s were restricted to flying below 25,000ft due to the same problem.

The order is in effect until "further notice", the ACC says.

"The standown is a prudent measure following recent reports of oxygen system malfunction," Fraser said in a statement.

While the F-22s remain parked, investigation teams will continue to determine the cause of the malfunction, the statement added.

The ACC emphasized that the stand-down order is technically not considered a "grounding", which occurs only in response to a catastrophic technical issue. A stand-down is voluntary and precautionary.

Despite keeping the F-22s on the ground, ACC believes the stand-down order will not change the air force's ability to perform missions such as air superiority alert. The F-22 is still available for "national security directed missions", the ACC said. One-time flights can also be approve by the heads of major commands, inclduing repositioning flights.

The air force has been flying the F-22s operationally for more than five years, with more than 150 already in service. All 186 F-22s on order are expected to be delivered by early next year.

flightglobal.com/articles/2011/05/05/356332/oxygen-system-concerns-prompt-f-22-stand-down.html

本文内容于 2011/5/6 10:13:13 被diver18编辑

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