A couple days ago I posted pics of my outside AC outlet and the damage found there.
Turns out a cutting torch was applied through the hole in the lower bodywork and a section of the outrigger was melted away. That is how the 'heat' hole appeared in the aluminum which i discovered when I pulled off the warped AC waterproof cover.
Additionally, the plywood flooring apparently caught fire because an area of about 1 sq. ft. is pretty charred.
No telling when that little episode occurred... but it is 'water under the bridge'..
The area appears to be just beneath the dining table/ sleeping area... the floor does not get a lot of load here.. but all seems very stable at this time.
Suggestions.. leave alone... paint/seal... the wood?
Pics on my phone.. will try to post.