tonyplane(at)bellsouth.ne
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 Posted: Mon Apr 20, 2009 7:23 am Post subject: Letter of the Week in AVwebFLash |
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FYI, See avweb(at)e.avflash.com (avweb(at)e.avflash.com) article attached below from Mr. Maynard
I agree with you Jay.
I do not, though, check my cables every preflight, but make sure that my controls react to stick inputs without any "slop". during preflight. In Phase I, I took my XL to the envelop edges and in some cases, carefully, a little beyond. I do not fly out of the envelop.
Tony Graziano
XL/Jab; 483 hrs; N493TG
The Top Reporter on Our Crack Staff ... Is You! [url=mhtml:mid://00000030/#top]back to top[/url] 
AVMAIL: APRIL 20, 2009
Letter of the Week: Zodiac Concerns
I own and fly an AMD Zodiac CH601XLi that I bought new last June. I'm also a member of the Zenith Builders Analysis Group, the independent group that the NTSB cited as doing engineering studies of the airplane. I've put over 150 hours on my airplane since I bought it.
Am I concerned? Yes. Am I going to quit flying it? No. I've been taking several actions that I believe minimize the risk: I regularly test my aileron cable tensions, I check that there is tension on every preflight (easy to do), I keep it in the green arc except for absolutely smooth air (and will probably keep it there even then, now), and I slow down to maneuvering speed in more than slight turbulence.
Aviation is all about managing risk. We can't eliminate it, no mater what we do. I believe the measures I take will reduce the risk of aileron flutter well below the risk that I'll do something stupid like run out of fuel or continue VFR into IMC - and I take active measures against those risks, too.
If Zenair and AMD come out with a modification to resolve the problem, I'll do it. Until then, I refuse to worry about it beyond what I've already done.
Jay Maynard
Click through to read the rest of this week's letters.More...
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