I have heard it said that all aviation regulations are "written in blood". I think this means that every rule in the book exists because someone died - and there was a lesson learned. Is this accurate? Is there anything else to the story of this phrase?


1 Answer 1


No, that's all it means. Aviation regulations tend to be put in place in response to accident reports, where a plane crashed or almost crashed for lack of the regulations. So, if you're confused why a stupid-seeming regulation exists, there's a good chance that people died because of the thing the regulation changed.

Obviously, not all regulations are like that; for instance, noise limits are based on quality of life for those near airports, not crashes. However, a good number of aviation rules came into effect as recommendations following a crash report.

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    $\begingroup$ Not all safety-related regulations are like that either. Many are result of simply realizing something is safety-critical already during design and many are results of incident reports which is when something went wrong without causing any injury or much damage, but increased risk of accident was recognized and gets addressed. $\endgroup$
    – Jan Hudec
    Mar 6, 2015 at 10:04

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