PPRuNe Forums - out of control?

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- - out of control? (https://www.pprune.org/private-flying/450770-out-control.html)

moreflaps

6th May 2011 10:45

out of control?

Anyone know the story behind this video?

The Grim EPR

6th May 2011 10:49

This is discussed here I believe.

http://www.pprune.org/rumours-news/4...her-ua232.html

moreflaps

6th May 2011 23:40

Thanks for that link, but it would be nice to know what the actual failure was.

Flaps

Genghis the Engineer

6th May 2011 23:43

I doubt we'll ever see a report, but my money would be on a yaw damper system failure, possibly in a manner that converted yaw channel negative feedback (that you should have) into positive feedback (which can be catastrophic). All sorts of things could do that, and not having a clue about Tu-154 systems, I'm not going to even hazard a guess.

G

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