The probability of a never event is also approx. 3 x 10-5 (1 per 31,144 procedures; Simcock, 2018). About as reliable as you’d find in any field of work, esp. complex work. The term itself is problematic and incompatible with risk-based (ALARP) approach.https://twitter.com/c7rky/status/948169919266422784 …
I've already said I don't expect zero. And yet the aviation industry managed to avoid killing a single passenger anywhere in the world last year? Are they just better at doing what they're ALWAYS supposed to do?
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Yes, I know. But “never” means zero. Aviation death risk is extremely low (esp. for commercial scheduled passenger), but about 100x less complex, lower demand/pressure, better resourced, and less messy generally (not starting with a sick airplane).
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Also vastly different safeguards in aviation. There have been, e.g., landing on or taking off from taxiways, landing wheels up, running off end of runways, clipping wings when taxiing, losses of separation, but a little bit of blue sky, plane itself or pilot protects passengers.
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In healthcare, comparable events to these occur and there is no comparable safeguards. But there are annually reviewed ‘Top 5’ priorities (comparable to Never Events) which are approached via safety risk studies.http://www.eurocontrol.int/news/top-5-atm-operational-safety-studies-now-available …
End of conversation
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