Yes, you do, as part of certification. Boeing misrepresented the degree of control MCAS has and was able to avoid making it a redundant system as a result. Layp

Yes, you do, as part of certification. Boeing misrepresented the degree of control MCAS has and was able to avoid making it a redundant system as a result. Layperson's description here: https://www.seattletimes.com/business/boeing-aerospace/failed-certification-faa-missed-safety-issues-in-the-737-max-system-implicated-in-the-lion-air-crash/ https://www.seattletimes.com/business/boeing-aerospace/faile...