General Electric is sticking to a technology test plan for the GE9X engine for the Boeing 777X, despite continuing uncertainty over Boeing’s development timetable. The engine maker is running a raft of technology demonstrations to support FAR33 engine certification in 2018 and entry-into-service in 2019. Boeing, which has not formally announced a firm schedule for the 777 derivative, still is believed to be aiming at introducing the aircraft by 2020. “Even though Boeing is still ...


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