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This is why civil aviation is so safe, and why it remains dangerous. There is essentially no single root cause path to death in civilian aviation, you need mult
by yodon 9y ago
This is why civil aviation is so safe, and why it remains dangerous. There is essentially no single root cause path to death in civilian aviation, you need multiple systems to fail (yes, including the pilot, because you have a copilot, medical tests, training, and related secondary systems all designed to prevent the pilot from failing or provide a secondary system if they do). Every aviation accident today is almost by definition a multi-system failure. It would be nice if multiplying two low probability events resulted in a zero probability for the combined event but unfortunately probabilities don't zero out that way.
- FabHK 9y ago> Every aviation accident today is almost by definition a multi-system failure. As in James Reason's famous "Swiss Cheese" model of accidents: > In the Swiss Cheese model, an organisation's defenses against failure are modeled as a series of barriers, represented as slices of cheese. The holes in the slices represent weaknesses in individual parts of the system and are continually varying in size and position across the slices. The system produces failures when a hole in each slice momentarily aligns, permitting (in Reason's words) "a trajectory of accident opportunity" https://en.wikipedia.org/wiki/Swiss_cheese_model https://en.wikipedia.org/wiki/Swiss_cheese_model