Mmmm ...
Having been intimately involved with the 'Angel of Mercy' from (1974-1980) .. I think that I can say that it was NEVER involved in ANY operational mishap ...
(of course I stand to be corrected) BUT I'll be VERY suprised to be informed of any .. it was of course superseded by the Vic Pol air ambulances and the NSC machines (politics?) from 1981 onwards ...
IT (the 'Angel of Mercy') never crashed ... as far as i know ...