The essence of the normal accident [is] the interaction of multiple failures that are not in a direct operational sequence.
p. 23 and later - Normal Accidents, 1984
![The essence of the normal accident [is] the interaction of multiple failures that are not in a direct operational sequence.](https://img.libquotes.com/pic-quotes/v1/charles-perrow-quote-lbd5s6q.jpg)
![The essence of the normal accident [is] the interaction of multiple failures that are not in a direct operational sequence.](https://img.libquotes.com/pic-quotes/v2/charles-perrow-quote-lbd5s6q.jpg)
![The essence of the normal accident [is] the interaction of multiple failures that are not in a direct operational sequence.](https://img.libquotes.com/pic-quotes/v3/charles-perrow-quote-lbd5s6q.jpg)
![The essence of the normal accident [is] the interaction of multiple failures that are not in a direct operational sequence.](https://img.libquotes.com/pic-quotes/v4/charles-perrow-quote-lbd5s6q.jpg)
