I have checked everything I possibly can, and so far, in my experience, no.

Let me clarify: once you pick up a crashed ship, that's it, you've got it, it'll never spawn there again.

however, if you've got multiplayer on, and someone grabs up a ship before you can, yes it should respawn at some point (i've heard it takes 24hrs, but I cannot confirm) so you can pick it up yourself.

If you turn off your multiplayer then you should have to worry about someone picking it up before you, but you can't go back and pick it up again once you have picked it up.

Anywho, this is just what I've found, if you have different info, lemme know, there are some ships I'd like to pick up and scrap again! lmao