So much about America's corporate culture. Not the first time Boeing unjustly blames the (dead) pilots who can't defend themselves to cover up technical defects while secretly searching for the fix. Sadly enough, the FAA let Boeing get away with it for economic reasons and the airlines back up Boeing against their own pilots because they don't want to incur losses grounding their planes while waiting for a fix that might take months or even years while flying relatively unsafe airplanes. There was another mysterious crash where Boeing and the media conveniently rushed into suggesting the pilots committed a suicide act..
That was MH 370 a boeing 777, there are enough reasons to believe that the pilot committed suicide because the plane didn't crash. there was no scattered debris and the plane looks like it was landed on water as the wing that washed off the African east coast shows that the flaps were open that means there was an attempt at landing and making the plane disappear and it is probably below water in big intact pieces. The pilot simulator at home shows he had simulated a flight to the same remote indian ocean area and when he flew after crossing the malay peninsula, he turned back to go ditch the plan in the Indian ocean he flew on the Malaysia Thailand border continuously switching airspace to avoid being chased by military planes, he also avoided flying over land in Indonesia Sumatra and turned 110 degrees and flew he plane above the ocean north of Aceh when his straight line would taken him over west Sumatra.