Boeing has reactivated its fourth 777X testbed aircraft, WH004, marking the first time all four test planes have been concurrently active since late 2021. The reactivated WH004 is uniquely configured ...

One of Boeing’s 777-9 test aircraft returned to the skies on 16 January, ending a four-month grounding of the 777-9 test fleet and indicating some progress in Boeing’s effort to conclude the type’s ...

EVERETT — Boeing’s fifth 777-9 took its first flight from Paine Field on Tuesday, marking another step in the jet manufacturer’s journey to get its latest plane model out of the factory. The 777-9, ...

Boeing is regaining momentum on the 777X program, with increased flight test activity and a fifth test aircraft accelerating certification efforts. Inventory build and order inflow for the 777X are ...

The Federal Aviation Administration’s failure to approve Boeing’s next round of 777-9 certification flight testing prompted the company’s decision to again push back the jet’s expected introduction.