Michael,

Thanks for the info. I am not here to cause a ****ing contest and
certainly defer to professional mechanics in the small aircraft world
and I would appreciate comments from any mechanics here. I don't
think other pilots are the best source of information such as this.
If I have pilot questions, I ask other pilots. Maintenance issues, I
talk to the professionals in that field.

I do think that newer light aircraft are certified to Part 23 and
those standards apply.

The title of Part 23 -
Airworthiness Standards: normal, utility, aerobatic, and commuter
category airplanes

Part 23 was first issued in 1964 and any design certified after then
is under that part. Older ones are CAR 4b and those standards don't
apply. The easy way to tell is to look at your Airworthiness
Certificate and see how it was certified. I think some older designs
may have been Grandfathered, but I am not sure.

Myself, I would treat upholstery on an old CAR 4b aircraft no
different than how an engine is overhauled. Hey - in the old days we
used mineral oil. Would I do that today? No way as the newer stuff
is so much better. If I could bring the interior up to the latest
standards, it is in my best interest to do that. That is all I am
saying. I've been in an aircraft on fire, so that made an impression
on me. I'll take engine failure any day.

Thanks again,

Don

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