As JT says it very hard to see how you can put these sort of things in Black and White.
If you remember tyhe DC10 overrun accident where people had been operating to manufacturers figures on the DC10 for years only to find that the stopping distance did not take into account ALL brake units worn to just within limits.
The brakes were unable to dissipate the heat and the aircraft went off the end.
RTO limits were adjusted and the brake wear limits were reduced ( by an FAA AD!) on most transport aircraft when they realised it was a major problem.
Yet for years we had gone along with the manufacturers limits - with all the add 1 second here and add 2 seconds there only to find they had got it all wrong !!