Originally posted by crispy critter
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Gary Green (used to own Jumping Branch Exhuast) built many exhaust systems under the owner produced parts regs, but to do that, legally the parts can't be available though another source. By the reg, if the part is being manufactured by the factory or under a PMA or TSO, that part can;t be made under 21.303. If you or anyone is dead set on making parts, make sure you align yourself with a current PMA holder, or become real friendly with a DER. Otherwise, good luck on getting anything done directly through the FAA when it takes 6 months or longer to get 337's approved today.
Mike
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