Conversation so far:
what is known about Alan's death?
Kulwicki died in an airplane crash on Thursday April 1, 1993.
where was he going?
He was returning from an appearance at the Knoxville Hooters in a Hooters corporate plane.
how old was he when he died?
CANNOTANSWER.
what else is known about his death?
The plane slowed and crashed just before final approach at Tri-Cities Regional Airport near Blountville.
who else were in the plane with him?
CANNOTANSWER.

Question: what was the cause of the crash?
Self-contained rewrite: what was the cause of the airplane crash that killed Alan Kulwicki?