This doesn't look good....sagging floor?

[Bill]

Larry -

I'm on board with that idea. I've run into mechanics who want to put a jack in strange places. (Usually under the axle, which you gotta prevent.) But in this case, the "mechanic" might have assumed that the frame was just inside the edge of the trailer, and without confirming, slid his jack in there and pumped away.

Dave -

Does anything appear unusual at that spot when viewed from inside the trailer?

Would you consider cutting an opening in the bottom skin of the trailer, a foot or so long and a few inches wide, up against the edge of the trailer, so you can peek at the structure at the floor-to-wall join? Alternatively, remove the outside shower box. Use a mirror, inspection camera, or borescope, to look back at the area.

Bill