As Outhouse very aptly stated - Hindsight is a wonderful thing.
I was in Aberdeen when the inclined driveshaft hinge pin fell out of TIGD (332L) on short finals for the runway.
The very same failure had happened on at least one 330J Puma and the design on that had been changed - why did the 'bad' design reappear on the newer machine?
As it was the aircraft ended up on it's side but if this had come about earlier in the flight, who knows what the outcome would have been.