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Date: Sun, 01 Jun 2008 08:47:33 -0400
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From: "Clark Still" <clarkstill@netzero.com>
Subject: TruTrak Servos
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I was doing the second annual condition inspection on my LIVPT and found=
 that my TruTrak pitch servo was just about to fall apart.  The back pla=
te (opposite side from the control arm) is held in place by four small, =
stainless flathead screws (1/16" hex).  Two of the four screws had falle=
n out and the remaining two were loose.

I phoned TruTrak and they said that they had seen that problem with some=
 older servos (not clear precisely what this means) and were now using b=
lue Loctite to keep the screws in place.  They also said some people had=
 used longer, fully threaded mounting bolts and put a locknut on the pro=
truding end to secure them in place.

In any case, this is something that should be carefully checked at the a=
nnual inspection.  Or if you haven't looked in a while, I'd recommend ha=
ving a look now.  It might not be nice to have one of your autopilot ser=
vos come apart in flight.

Good flying, Clark Still (N750S, 190 hrs, KPOU)

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