The head-on car accident I was in, when a pickup was coming in my direction and I could fully see it, I didn't have any rational thoughts. All I could do was just scream my head off like an animal--no rational thoughts at all.
Probably they were so panicked they could not be coherent. Lots of unsaved people think that if they are in a similar situation, they can just cry out to Jesus and be saved then. Doesn't work out that way--Jesus or anything rational is not what on your mind--NOTHING is on your mind except pure animal horror
Being that the transponder failed at 3000 feet, the plane probably lost power at that altitude and nothing further was recorded on the voice recorder.