StartLimiting,
Thank you very much indeed for that. I felt sure that it was in the 70s, as I remember having a beer with him and his brother way after I'd left school in July 69. I remember distinctly Chris talking about "famous last words" of students prior to impending crashes. As you say, he was a terrific chap, and a sad loss.
He was related (a cousin, I think) to Bob Woolmer, the cricketer.
I've been meaning to find out what actually happened, and I thank you for taking the time and trouble to post.