Washington — US aviation regulators were directly involved in approving the flight-control system implicated in two fatal crashes on Boeing’s 737 MAX, a top administration official told US Congress on Wednesday, pushing back on complaints that the company had too much of a role overseeing itself. Federal Aviation Administration (FAA) acting chief Daniel Elwell, in his first appearance before the US House committee that oversees his agency since the regulator grounded the 737 MAX, said in written testimony submitted to the committee that the involvement of FAA specialists included participation in a test flight of the system that drove down the nose in the two accidents. The FAA has come under fire for approving the feature known as the maneuvering characteristics augmentation system (MCAS), and for giving the plane maker too much authority to regulate the safety of its planes. After a sensor on 737 MAX jets in Indonesia and Ethiopia malfunctioned, MCAS continually attempted to make ...

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