This sort of avidable engineering cock-up wasn't restricted to Vulcans! Not so long ago, the spanners managed to write-off a perfectly serviceable VC10 at the Covert Oxonian Aerodrome when it sat on its ar$e whilst being defuelled prior to going into Base Hangar. And there was someone trapped inside, I understand.
I'm sure that the photos are around the internet somewhere; allegedly 'Thrombo' tried to keep it quiet - but by then the photos were safely in the can!