Billions of dollars of technology and it can’t send a find my iPhone signal?
Maybe that’s too flippant: but a Cessna carries a little inertia operated beacon that activates in case of a sudden stop. Seems like a multi hundred million dollar fighter could as well (and I say that knowing that radio emissions from a stealth fighter are a very very bad thing in general).
last flippant comment: I bet the Chinese know where it is.
Sic transit gloria mundi (so shut up and get back to work)