IN AUGUST, the Federal Aviation Administration (FAA) opened a 45-day comment period on four updates to the Boeing 737 MAX design that it has proposed for an Airworthiness Directive (AD) to return the aircraft to service. A key change is introducing new control laws to the MAX's flight control software to prevent erroneous activation of the jet's Manoeuvring Characteristics Augmentation System (MCAS), cited as a primary cause of the October 2018 Lion Air and March 2019 Ethiopian Airlines disasters that killed 346 people and led to the type's grounding.
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