Avionics question, parts....

Date:         27 Dec 96 04:41:05 
From:         bigiron@pipeline.com (FRITZ  )
Organization: MindSpring Enterprises, Inc.
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This question maybe a little out of it's group but I couldn't find
anouther group that fit.

I work on DC10 pitch, roll, and yaw computers. These units were
orginally built by Bendix. I think Allied Signal owns the division
now. We have a tremendously long wait for some parts on these units,
sometimes as much as a year. Not only that, but the parts are
extremely expensive. I always thought that The FAA required
manufactors to supply parts in a timely fashion or authorize the use
of alternative parts. It doesn't seem to work that way. Is my
assumption wrong or what?

These units were probly state of the art at the time the units were
built and used components that were one of a kind, probly custom
built. These components are long obsolete in the general electronic
industry but we have to use them.