Missing Canberra
Your version of XH204 is correct as I remember. I was a CPL Weapons Fitter on 59 Squadron at the time and arrived at the line just as Sgt Munn (or was it Minns) realised we were one missing. The only thing I would add was that in addition to "Fingers" suitcase and Pilots Notes, there were rumours that navigation maps were laid around pointing to the East. Did he resort to plan B and head for Mummy when he failed to take off.