The problem with Boeing’s flight control system was the key issue that caused the crash of two Boeing 737Max planes.

The Federal Aviation Administration said that Boeing concealed “relevant” information about the flight control system among employees in 2016, which was related to the crash of two Boeing 737Max planes. Relevant information disclosure may cast a shadow over Boeing’s 737Max models that have been grounded globally.

According to information obtained by many American media, a Boeing test pilot complained in one of the messages that the “Maneuvering Characteristics Enhancement System” (MCAS) of the aircraft was difficult to operate.

  

The “Maneuverability Enhancement System” is the key to the two Boeing 737Max air crash investigations. Investigators believe that the system is related to the two crashes of Lion Air in Indonesia in October 2018 and Ethiopian Airlines in March 2019. Due to system problems, both flights continued to automatically adjust their noses down. The last two air crashes resulted in 346 deaths.

According to reports, Mark Faulkner, the former chief technical pilot of Boeing, told a colleague in 2016 that the system “is like crazy to me in the simulation.” Later, his colleagues said that they would update the description of the system. Faulkner replied: “So I lied to the supervisory unit (unknowingly).” Faulkner has not commented on this at present.

Pilots of other airlines also complained after the crash that they only started to understand the “maneuverability enhancement system” after the Lion Air crash.

Boeing and the Federal Flight Administration are currently facing multiple investigations into aircraft design and software. Just a week ago, the company dismissed CEO Muirenberg from his chairmanship, allowing him to focus more on getting the plane to go around as soon as possible. It is understood that Muirenburg will go to the US Congress for the first time from 29 to 30 of this month to participate in two panel hearings of the Senate Commerce Committee and the House Transportation Committee.

The FAA stated that Boeing discovered the information “a few months ago.” The FAA certified the 737Max model for the first time in 2017. The FAA said, “We were disappointed that Boeing did not bring this document to our attention immediately after it discovered it,” and said it was “reviewing the information to determine what action to take.”

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