On Thu, 15 Jul 2004 02:29:35 GMT, Orval Fairbairn
wrote:

In article ,
"NW_PILOT" wrote:

I was reading on http://150cessna.tripod.com about owner
manufactured parts. I was wondering if I could make my own interior
parts? For example change plastic parts to aluminum, or titanium
such as the plastic instrument bezels, mike holder ECT.

I have access to a really nice machine shop, CNC equipment, laser
cutter's and etchers ect. I can almost make/help make any plastic
part on the inside of the airplane out of aluminum or titanium.

Any advice on this!



The FARs specify "equivalent or better," so it should be a no-brainer to
substitute .010 Aluminum for plastic. As for titanium, I can think of a
few applications, but the stuff is really a bitch to work!

Get a friendly AI and fill out some 337s.

The FAR's do NOT specify "equivelant or better". Owner produced parts
must conform to the original specifications and production processes.
You are not allowed to make an aircraft part "better" unless you
obtain an STC or field approval. Owner produced parts do not require
a 337, as they are not major repairs or alterations.