What's up

[rama777]

I've just gutted my 74 31' airstream and the floor looks pretty solid. I don't want to pull up the plywood if I don't have to but I want to fix her right. What the heck is under the floor anyway? If there are potential issues than I need to know now and not after I've restored it. So I guess my question is what is under my floor and what are the odds that there is damage under there? Thanks!

[LI Pets]

More than likely wet pink insulation, take a look see.

[overlander63]

Rather than ripping up a solid (good) floor, why not drill out some rivets and check it out from the belly pan area? It is easier to re-rivet things back up if it's good, than replacing a floor you didn't have to remove.
Between the belly pan and the floor, you have drain plumbing, insulation, and the frame. Some models will have water storage tanks as well, fresh and waste.