The airplane must receive crucial ETOPS certification.

Boeing's flagship aircraft is now around seven years behind schedule.

Boeing received Federal Aviation Administration approval to begin Type Inspection Authorization Phase 4B certification flight testing for the 777X. The authorization marks a key step in the long ...

Add Yahoo as a preferred source to see more of our stories on Google. I toured an experimental Boeing 777X aircraft, which the planemaker is using to certify the new $442 million widebody. See inside.

Boeing has reactivated its fourth 777X testbed aircraft, designated WH004, marking its return to flight operations for the first time since late 2021. The aircraft took off from Paine Field (KPAE) in ...

SEATTLE (Reuters) - Boeing resumed testing for its long-delayed 777X widebody jet on Thursday, with the first flight since the U.S. planemaker grounded the test fleet in August due to the failure of a ...

Boeing said it is pausing test flights of its still-in-development 777X fleet after technicians discovered a structural issue during a post-flight inspection. “During scheduled maintenance, we ...

“During final load testing on the 777X static test airplane, the team encountered an issue that required suspension of the test,” Boeing spokesman Paul Bergman said in a statement, according to ...

Boeing has suspended certification flight testing of its 777X airliner after discovering problems with the engine attachment structures in all three test aircraft. A thrust link, a component securing ...

Boeing Co. has paused flight tests of its 777X jetliner while it inspects the four-aircraft fleet for cracking in a crucial structural component that connects the hulking General Electric Co. engines ...

Boeing said Monday that it has grounded its fleet of 777X test aircraft for inspections following discovery over the weekend of a failed component connected to the jet’s engine. After one of the 777X ...