Jose wrote:

So, does this mean it's ok to use a non-certified light, or just that
you'd probably get away with it?

It is *not* ok to use a non-certified part. My take on the matter is that, if an
aircraft was certified to use Delco part number AC-9732-5, I can install a Delco
AC-9732-5 that I bought at the local NAPA dealer. I have heard that certain
assholes in the FAA feel that a Delco AC-9732-5 purchased from NAPA isn't ok;
that you have to buy it from, say, Piper for it to be legal. My take on that is
that they are wrong, and, given that nobody can tell where I bought my Delco
AC-9732-5 unless I tell them, I *will* "get away with it."

Either way, when I install the same make & model of part that is listed in the
certfication papers, I *am* installing a certified part. It says so in the
certification.

Disclaimer: I have no idea if Delco actually made part number AC-9732-5. I made
that up.

As far as a GE 4509 bulb is concerned, that's what the two aircraft I've owned
were certified to use, and every bulb I installed was a certified bulb.

George Patterson
Drink is the curse of the land. It makes you quarrel with your neighbor.
It makes you shoot at your landlord. And it makes you miss him.