I can recall being the odd man out in tea room discussions about Bell 212's and choosing safe landing areas along the flight path just as in Single engined Bell 205's. My argument was predicated upon a Drive Shaft Failure.....not a simultaneous Dual Engine failure (although the results are exactly the same).
Having come within a Gnat's Ass of having exactly that kind of failure over the North Sea one ugly Winter night while shuttling in the Ninian field using an S-58T....perhaps I was being a bit sensitive to the topic.
Something as simple as a Rubber covered Torch left in a bad place by an Engineer can morph that 10 to the -9 event into reality.
Yet we have to admit....just how many simultaneous dual engine failures have we experienced over the years?
If I am not mistaken....there have been far more Tail Rotor Failures than dual engine failures.