From the responces, it appears that some repair manuals allow repairs
to control surfaces. However, it needs to be mentioned that
structurally a repair is OK as long as the balance is maintained.
However, repairs often include patches that can cause a disruption of
the airflow, especially if done like some repairs I have seen. If the
surface contour is maintained, and the balance done right, a repair
should be OK. I don't see how an aileron crushed by a truck could ever
be made straight again for less effort than a new one would cost.
Bonanza ruddervators and Mooney ailerons are both notorius for needing
to be exact.

Bud

wrote:
OK... I've got a question. I've seen a number of aircraft around that have
had little patches and repairs made on them. Sometimes on a wing or fuselage,
sometimes on an elevator, sometimes on an aileron. I've heard that it is illegal to
patch moveable control surfaces, but yet I've seen numerous aircraft around with
repairs like that.

Does anyone know if this is true/false and which regs (chapter and verse)
dictate it?

Just curious...
-Cory

--

************************************************** ***********************
* Cory Papenfuss, Ph.D., PPSEL-IA *
* Electrical Engineering *
* Virginia Polytechnic Institute and State University *
************************************************** ***********************