THIS JUST GETS WORSE: Boeing’s Own Test Pilots Lacked Key Details of 737 MAX Flight-Control System: A culture of close collaboration between test pilots, engineering staff deteriorated in later stages of aircraft’s development. “The extent of pilots’ lack of involvement hasn’t been previously reported and could bring fresh scrutiny from investigators and regulators already looking into Boeing’s design and engineering practices. It isn’t clear whether greater pilot participation would have altered the ultimate design of the flight-control system. But the scaling back of pilots’ involvement and their lack of detailed knowledge about the plane’s system add to the list of questions about engineering and design practices facing the Chicago-based aerospace giant.”