Garmin Transponder Repair - What Comes Next?

[SoCal 182 Driver]

Friends - I may need to send my GTX 330ES transponder in to Garmin for out-of-warranty service. I understand that the RMA will have to be done through a Garmin dealer.

Some questions...

1. Will I lose all my current settings in the transponder once Garmin works on it?
2. Will I need to have the transponder re-certified before it is put back into service even though it's been less than 24 months since its last certification?

I appreciate your advice and comments!

 

[Tom J]

Not a Garmin dealer, but everything I've sent in has come back with configs reset to factory as part of the overhaul. I'd plan to make note of your settings so you can reset when back. Per 91.413, whenever maintenance is performed on a system, it's supposed to be retested. Takes me about 25 minutes to test a transponder and make the sticker, FWIW.