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by Veserv
1822 days ago
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Seven 9s for system failure would be horrific. There are ~30-40 million flights worldwide yearly [1], so that would result in 3-4 system failures of life-critical avionics yearly. As far as I am aware, malfunctioning software has not been implicated in any commercial airline fatality in nearly 30 years since the modern standards were adopted, and correctly functioning, though unsafe, software has only been implicated in the 737-MAX crashes. By that standard we have reasonable empirical evidence to conclude that the prevailing rate of system failure is at least 100x better at nine 9s. [1] https://www.statista.com/statistics/564769/airline-industry-... |
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