Are not the Enstrom 280's fuel injected? That would rule out carb icing accidents, no?? I think Dennis Kenyon would have a good idea of it's safety record in the UK. Also remember it was heavily used as a crop sprayer back in the 70's and 80's, something the R22 would be less utilised as, hence less exposed to danger, excepting inexperienced pilots of course.

My mate Cookie from NZ would have a tale to tell about Enstrom's from the crop spraying point of view