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<p>[QUOTE=&quot;krispy, post: 1040033, member: 19065&quot;]That&#039;s pretty neat. I&#039;ve always rather liked seeing those bulky workhorse choppers in use when I see them in documentary or news clips. Their maneuverability&nbsp; and the severe angels you can put such huge helicopters in is quite amazing. </p><p><br /></p><p>Last night Modern Marvels on the History Channel was airing an episode about an investigation of a chinook that went down. They broke down how the old method of using crushed walnut shells to clean oil lines led to blocked oil flow getting to the rotors. They said that lead to the turning of the blades seizing and hitting the other blades causing the catastrophe, which eventually led to the material being switched upon the root discovery of the malfunction, the addition of new monitoring systems and better safety inspections.[/QUOTE]</p><p><br /></p>

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