My right foam wing has a crack just behind the phenolic wing tube after a crash. The bottom balsa sheeting is split along the same place and the crack extends 50 % into the foam core but not right through. The split stops right where the phenolic tube ends in the wing. The phenolic wing tube is glued to a balsa box with triangle pieces filling in the corners. This assembly is then glued to a slot in the foam wing. There is no damage to this wing tube retainer. The crack is just behind this box.

I am thinking that I could apply a strong epoxy ( or gorilla glue) along the crack and clamping the wing between the original foam core saddles . When cured , I could strengthen this joint by applying fibreglass mat over the cracked section ( top & bottom) .Will this be enough strength ?

Any other ideas?

Tks