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Old January 27th 05, 03:52 PM
Jim Burns
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Default Autopilot pitch problem

We've got an S-Tec 60-2 in our Aztec. After sitting out in a heavy pounding
rain last summer, we started experiencing run away pitch problems. I found
an S-Tec news letter that says this can happen when water gets into the
static system and the transducer can't read the proper static pressure. It
says to remove the static line from the transducer, cap it, and fly the
airplane with cabin static pressure going to the transducer to see if the
problem goes away. No problems have been noted with any of the pitot/static
instruments.

Has anybody had this happen? Does anybody know what the transducer looks
like? Obviously it's attached to a static line, and S-Tec says that it
should be mounted in a warm dry place, but I'm wondering what I should look
for.

Thanks
Jim