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One of the two sensors that measure the angle of attack is shown down on a Boeing 737 MAX 8 on the outside of the company's factory on March 22, 2019 at Renton, in the state of Washington.
One of the two sensors that measure the angle of attack is shown down on a Boeing 737 MAX 8 on the outside of the company's factory on March 22, 2019 at Renton, in the state of Washington. Stephen Brashear / Getty Images
The release of the official report puts an end to weeks of leaks and speculation about the cause of the crash, largely focused on the role of the MCAS anti-stall software.
Wall Street Journal Reports suggest that MCAS automatically activates before the aircraft plunges its nose into the ground.
At the time of the Lion Air accident, the MCAS forced the plane to sting more than 24 times before it finally touched the water, according to a preliminary investigation conducted by the Indonesian Committee transportation safety, who had discovered that the system was responding to a faulty sensor.
The Wall Street Journal also announced that the pilots had initially followed the emergency procedures established by Boeing prior to the accident.
Questions were also asked as to whether the pilots had sufficient training with the system.
Pilots in transition to the Boeing 737 Max 8s from the older 737 models took a short, self-administered online course that made no mention of the MCAS system, CNN spokespeople at the two pilot unions told CNN American carriers.
Tewolde GebreMariam, CEO of Ethiopian Airlines, also said that the flight simulator on which the pilots were trained to learn to fly a Boeing 737 Max 8 did not reproduce the automated MCAS function.
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