Saying they 'ignored' it is quite generous, considering the former CEO essentially blamed the pilots (source: https://www.bloomberg.com/news/features/2021-11-16

Saying they 'ignored' it is quite generous, considering the former CEO essentially blamed the pilots (source: https://www.bloomberg.com/news/features/2021-11-16/are-boeing-planes-unsafe-pilots-blamed-for-corporate-errors-in-max-737-crash https://www.bloomberg.com/news/features/2021-11-16/are-boein...). Here's an excerpt from the article... --- “No, again, we provide all the information that’s needed to safely fly our airplanes,” he answered. Bartiromo pressed: But was that information available to the pilots? “Yeah, that’s part of the training manual, it’s an existing procedure,” Muilenburg said. “Oh, I see,” she said. But in fact, MCAS wasn’t in the manual, unless you counted the glossary, which defined the term but didn’t explain what the software did. --- A safety critical feature that can down a plane if not disabled in time... tucked away in a glossary. The documentary 'Downfall: The Case Against Boeing' goes into great detail about the whole ordeal.