The 777-9 Takes Off For Its First Certification Flight Test Friday, July 12, From Boeing Field, Seattle. The 777-9 is a variant of the company's new 777X family of planes, though roll-out of the ...

The fourth Boeing 777X should be flying soon, with the company activating the airframe, known as WH0004, which is registered as N779XZ, on April 13. Other 777-9 airframes, namely WH001, WH002, and ...

Boeing has started certification flight testing of its long-delayed 777-9 with U.S. aviation regulators onboard, the U.S. planemaker said in an emailed statement.