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First 777X certification test flight with FAA Personnel onboard. #777X #GE9X #Boeing777X | Boeing 777X

276K views · 2.8K shares | Our first #777X flight test airplane made its runway debut! Our teams performed a series of low-speed taxi tests, marking the first time this plane moved on its own power. This is one of many tests before the 777X takes to the skies later this year. | The Boeing Company | Facebook