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Boeing chief says flight tests on 737 MAX software fix are advancing

April 12, 2019 / Dominic Gates

Muilenburg, speaking at a Forum on Leadership at the George W. Bush Presidential Center  in Dallas, also described the impact of the recent 737 MAX crashes on himself and the company. All of us feel the immense gravity of these events across our company, and frankly these last few weeks have been the most heart-wrenching of my career,” Muilenburg said. Muilenburg repeated his previous acknowledgement that the new flight control system on the MAX called Maneuvering Characteristics Augmentation System, or MCAS  has been implicated in both the crash of Lion Air Flight 610 last October and Ethiopian Airlines Flight 302 last month, killing a total of 346 people. He described MCAS, which was triggered by a faulty sensor on both flights and repeatedly pushed the nose of each jet down, as just “one link in a longer chain of events,” implying that other contributing factors will likely emerge.