Is fuel fill hose foamed in? Leaking tank...

[flyingfrizzle]

You can see the hose on the one picture and the slot that was cut in the stringer from the factory that it laid in, in the second. The foam in the slot was fully around the hose. 1974 so your may be different. Looks like they just cut a chunk out of the stringer and let it lay in the slot, not glass under it or to seal the hole off so the foam don't get wet in the stringer either. There were also other foam fill holes you can see as well that were never sealed.