Talk:USAir Flight 427

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[edit] crash site

Where exactly did this plane crash? I live in Aliquippa and i want to know. 67.171.94.163 02:46, 9 May 2007 (UTC)

This should give you an idea: http://www.sptimes.com/28-seconds/graphics-day1/crash-site-lg.jpg NW036 03:18, 9 May 2007 (UTC)

This one says it's here. —EncMstr 03:23, 9 May 2007 (UTC)

[edit] Biohazard

Does anyone happen to know the exact reasoning behind the declaration of the accident site as a Biohazard?

While I can't find any hard evidence to link to this, I suspect this was due to the human body parts found all around the site. This never made the papers (to my knowledge), but my mother (an RN) was a medical voulenteer who helped collect said body parts for identification.

I can still remember her telling me about all the limbs strewn across the crash site. So sad.

I believe it was the body parts. My dad, an Anglican priest, was also there with the workers; I remember that they had to don HAZMAT suits because of the bodies.-- Anglican (talk) 17:56, 16 November 2007 (UTC)

But don't most air crashes of this nature have human remains strewn about? what in general was actually different about this crash, because the only hard idea that comes to mind is that some remains where buried due to the heavy impact? 82.34.60.76 (talk) 20:07, 9 January 2008 (UTC)

• Future note to anyone writing on this page, be sure to sign all your posts with four tildes as per Wikipedia editing requirements. NW036 17:12, 26 July 2007 (UTC)

[edit] Cause of the accident

I am not sure whether the way the cause of accident is laid here is correct. Jamming of the servo was the initial observation the investigators came across. However, further investigation by aircraft makers engineers revealed the servo could reverse under the same condation as above, i.e. when the servo was cooled below zero degrees centigrade and then heated suddenly. The second possibility would be more likely to make the plane react opposite to the expectation than the former. Just my two cents. gathima 04:12, 2 August 2007 (UTC)

Indeed, that is correct and I believe that Episode 5 of Season 4 of Mayday touches upon this eventuality. The eventual explanation was that when the Dual Servo valve was submitted to a thermal shock, I.E. hot hydraulic fluid pumped through a cold valve (something that could happen if the plane was descending from high altitude flight, and if the valve had not fully defrosted) that the valve could not only jam, but also reverse. This is almost certainly fitting of the behaviour of the plane, and the inability of the crew to recover its dive, before it slammed into the ground 82.34.60.76 (talk) 23:05, 26 April 2008 (UTC)