Denny wrote:
: Why does wire replacement have to have an STC?
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: Changes the weight and balance of the airframe...

I was thinking that, but I thought that there were situations where
empty W&B change didn't require a 337. Now that I read through it, I can see the
interpretation differently. One example that comes to mind is installing a
lightweight starter. It's got a PMA, so it's a drop-in replacement for the original.
It also takes 9 lbs off the nose (of my bird at least), so it requires a W&B.

All I can say is that if you cannot get your local FSDO to approve a 337 for
replacing Al wires with Cu wires according to AC43 and a W&B change, it's time to
send them some hate mail and/or move.

-Cory


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* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
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