Univair is making 4 inch inspection rings and covers as part of their SB 31
Ercoupe center section inspection.

I have installed two of the kits and they're complete even to the rivets.
G

A bit pricey , 8 for just under 200. However I couldn't make them for that
price...

Cheers:

Paul


I am looking for a source for aluminum inspection hole covers and
backing rings for metal wings. I could make them, but would be nice to
find some ready to install.
TIA Mike