dennis muilenburg latched onto findings that inexperience and lack of training were part of a chain ofwn in the hands of pilots, and in some cases our system safety analysis includes not only the engineering design but also the actions that pilots would take as, as part of a, a failure scenario, right... >> boeing's contention from the beginning was that even though the pilots did not know that mcas existed, that they did not need to know that. >> and in some cases, those procedures were not completely followed, so... >> boeing believed that the pilot should have been able to realize that itas very similar to a runaway stabilizer situation. >> narrator: "runaway stabilizer" is an aviation term for a malfunctioning stabilizer. after the lion air crash, boeing had issued a directive to pilots to be aware of this possibility, and told them what to do if it happened. >> when that part of the tail was not acting the way that it should be, you take manual control of it. >> the pilots could have stopped their rollercoaster ride by turning these two switches off. >> to shut off power to the st