At long last, Boeing appears near certification and EIS for 777X

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 By Scott Hamilton

 July 14, 2025, © Leeham News: Boeing is still months away from receiving certification of its newest, largest jet—the 777-9—and the company didn’t bring one of the test airplanes to the Paris Air Show last month. However, officials showcased the passenger and freighter models in an experience center during the major international event.

Justin Hale has the imposing title of Customer Leader & Senior Product Marketing Director for 777X and Production Freighter aircraft

The 777X comes in three models: the 465-seat 777-9; the 777-8F cargo airplane; and the 777-8 passenger model, which is an ultra-long-range (ULR) aircraft. The program was launched in 2013 at the Dubai Air Show (even though the first order, from Lufthansa Airlines, was placed earlier). Entry into service (EIS) was planned for the first quarter of 2020 with an unofficial goal of December 2019.

Flight testing revealed some technical issues with the 115,000 lb thrust GE9X engines. These required engine removal and return to GE Aerospace for redesign, delaying the program by nine months. Further flight testing revealed some uncommanded nose-down flight anomalies, requiring software redesign.

Then two fatal crashes of the Boeing 737 MAX in October 2018 and March 2019 revealed design and certification problems with the MAX. Scrutiny by the Federal Aviation Administration (FAA) of the MAX program expanded to include a comprehensive review of the work done up to that point on the 777X. The COVID pandemic further stalled flight testing and certification work. The engine-mounted thrust links developed cracks during further flight testing, adding to the delays.

Now, Boeing sees the program is finally on track for certification this year and EIS next year.


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