Look at any modern small aircraft type certificate data sheet and note
the certification basis. You will not find a single one that is
certified under FAR 21 They are all FAR 23. The original FSDO letter
you slammed mentioned "certified under FAR 23" You said he was wrong.
The certification basis IS FAR 23. Cite me one aircraft (small) that
has a certification basis of FAR21, as shown on it's TCDS.


On Wed, 17 Dec 2003 16:03:43 -0800, "Tarver Engineering"
wrote:


"Bill Zaleski" wrote in message
.. .
No John, the FSDO has it right. The certification basis for most
small aircraft is FAR 23.

No, Bill, all Type Certificates are Part 21. Part 23 can only change an
existing Type Certificate, that is to say, the is no Law through which a
Type certificate can be issued under Part 23.