This is a photo of the left end of the fire box of a Weber Genesis E-310 propane grill.
The DI portion of the serial number indicates that it’s a 2007 model.
I first saw this grill a few years ago while staying in a vacation condo. I’m not sure how or why the burn-through occurred, but upon a subsequent visit, I noticed this repair and thought it was pretty well done.
As you can see, they’ve cut a piece of stainless steel sheet metal to fit, drilled some holes, and fastened it to the inside of the fire box with nuts and screws. Not as good as a brand-new fire box, but a serviceable solution to an unfortunate problem.