Boeing completes first flight of a production-model 777-9 for Lufthansa as launch-customer delivery uncertainty persists
Boeing says a first production Boeing 777-9 aircraft built for Lufthansa has flown for the 777X program’s test phase following its Jan. 25 first flight milestone. Lufthansa is positionally still the launch customer, but continues refining contingencies as delay risk around the 777X remains in play.