Marco Leon wrote:
"rq3" wrote in message
...

I did a 320A slide-in replacement for an old Narco AT-50.
I replaced both the antenna and the coax, primarily because they were
of unknown age. The installation was painless and I filed a 337 and had a
transponder cert done to complete the process.

Rip


Did you file the 337 yourself or did you have a shop do it?


I'm an A&P/IA. I did it myself.

Rip