Years ago when Boeing bought Dehavilland, I was told a story by some DHC folks of Boeing destroying the jigs and plans for the Twin Otter, Buffalo and some other aircraft. At the time it was indicated to me that this eliminated the ability to produce spares which was a significant business and also held the promise for future development or modification of existing aircraft.
I know DHC was in trouble in the 1970s and was passed around through different owners but this story, the way it was told had a bit of bitterness as Boeing unloaded DHC rather quickly and labour issues at the facility in the 1970s were stressful at best.
My questions are a) does this story hold water? b) is this a common activity when one company takes over another-thinking of Boeing and McDonnell Douglas?