Hmmm, having been in a plane crash, I should be able to answer this from experience, but (a) it was a small (8 passenger) plane, so the circumstances don’t translate, and (2) I had a head injury in the crash and remember nothing (well, nothing that actually happened — TBIs are funny that way, it turns out).
I was in a BOAT crash and I helped, does that count?
I like to think that with my Navy training I would be useful in a large commercial aircraft emergency, but hopefully I’ll never find out.