"Under normal conditions, aircraft flying is not a very interdependent task. In many cases, pilots are able to fly their aircraft successfully with relatively little coordination with other crew members, and communication between crew members is rquired primarily during nonroutine situations."
Acknowledgement: C.A. Bowers, E.L. Blickensderfer and B.B. Morgan, Air Traffic Control Team Coordination. In M.W. Smolensky and E.S. Stein, Human Factors in Air Traffic Control, 215-237, Academic Press, London, 1998.