Lanier Edge 540 - ADD GLUE
I'd highly suggest removing the covering off the bottom open area of the fuselage and going over all the joints with some CA. After mine crashed we noticed that almost all the joints (formers, stringers, etc.) were either just tack glued in one little spot or appeared to have no glue whatsoever. In a few places you could peel off the covering and the parts would just fall apart. I've heard similar stores from a lot of other people online about this Edge, too. A bottle of CA and a roll of red Monokote would only cost about $20, which is a lot cheaper than replacing the whole $300 airplane! And even if you used the WHOLE bottle of CA that's at most 2 extra oz.