F-22 stand-down linked to site of Alaska crash

f22s parked.jpgF-22 manufacturer Lockheed Martin confirms the company has sent five engineers to Joint Base Elmendorf-Richardson, Alaska, to help investigate the source of the fleet-wide F-22 safety stand-down revealed on The DEW Line yesterday.

“We deployed a five-person engineering team to Elmendorf AFB to provide technical expertise and information to our USAF partner,” Lockheed said.

Air Combat Command describes the source of the stand-down as potential problems with the Honeywell onboard oxygen generation system (OBOGS), with pilots reporting decompression sickness and hypoxia.

It’s interesting the OBOGS investigation is focused on the only F-22 base that still has a fatal crash under investigation. The air force lost an F-22 and a pilot during a night-time training mission at Elemendorf on 16 November.

An Anchorage-based aviation safety blogger, meanwhile, has reported today that air force officials have linked the Elemdorf crash to the OBOGS.


2 Responses to F-22 stand-down linked to site of Alaska crash

  1. Znapel 6 May, 2011 at 8:56 pm #

    This is interesting. Hearing about the grounding the other day made me do the rounds to see if I could find any info about the crash, since it had been almost 6 months and I hadn’t seen anything. Only note I could find was from January to say that they were abandoning the recovery efforts until later because of the location and weather.

    If this is what really lead to the crash, that’s just sad…

  2. marc balke 18 May, 2011 at 9:46 am #

    anyone bother to see if the software on the f22 was coded using Ada or some other language ? Ada has timing issues at high speed processing demands, mainly due to the compiler not optimizing into machine code properly … maybe someone ought to check the software timing issues concerned with using high level languages ( such as Ada ) vs. strictly coded and properly maintained assembly language coding…

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