An excellent article written by Daniel Friedrich Sturm, U.S. Correspondent for WELT gives a great insight into some of the intrigue surrounding the Flight to Berlin on the 10th November 1989 and if, or if NOT fellow architect of "Ost Politik" was on board the R.A.F. Andover from Cologne to Templehof. The article can be found by searching WELT Die Reise seines Lebens written 11th Feb 2014. It can be translated by google translate and becomes WELT The journey of a Lifetime.
Lance Shippey