From: "Richard Helms" <rhelms@cox.rr.com>
To: <lancair.list@olsusa.com>
Subject: RE: INBD Gear Doors 360
Date: Sun, 21 Oct 2001 10:07:14 -0400
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Lloyd,
   You might want to check and make sure the sequence valves are properly
adjusted and are not leaving the doors open in flight.  There are several
things that can keep the gear from properly closing but having one of the
screws in the sequence values fall out will result in you flying with bottom
fins.  The inboard doors hanging down in a 190 knot or so air stream will
result in failure of the hinge.  Assuming there was not a weakness built
into the hinge during fabrication or early, extensive flying with those
doors open, with only 125hrs TT the doors have to be open and you have got
to be going fairly fast for the hinge to fatigue as you have described.  If,
with the correct pressure in the tires, the doors are closing properly I
would fabricate a new hinge and keep an eye on it's wear.

Hollis Helms
Oak Hill, VA

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