On Tuesday, May 8, 2018 at 10:06:56 PM UTC-7, Wade G wrote:
In short,
What is required to install a non-TSO’d moving map flight computer IN the panel of my certified glider?
A 337 mess?

WG

Where is your glider A&P?

In short, it depends. But is usually only an A&P entry for a minor change in the maintenance log book. A 337 is required for major changes, and it is extremely difficult to image an flight computer install that is by itself going to qualify as a major change in a glider. There are lots of discussions online from EAA and AOPA about what constitutes minor and major changes, start there if you want to read up on this.

If you have to ask these questions you probably should not be contacting a FSDO. Asking questions there can possibly end you up in a world of hurt and confusion. Its best to leave any questions like that up to the A&P you are working with. Find an A&P who is experienced working on gliders, you want that glider specific knowledge anyhow, and this question will likely be easy for them to discuss with you and answer once they know the specific work involved. And if its for some reason a very unusual install that needs a FSDO discussion or possible 337 filed, let them have that discussion.