I have used heli coils to repair spark plug holes (on my truck) and it worked great. It seems they should be able to hold up to static pressure of fuel in the tank. I'm somehow doubtful that it is an approved procedure.
With a mile of highway, you can go one mile. With a mile of runway, you can go just about anywhere.
![[Linked Image from visitedstatesmap.com]](https://www.visitedstatesmap.com/image/CAsm.jpg)
