Boeing Clears Hurdle for Long-Delayed 777X

Manufacturer will install new, redesigned engine thrust links on the aircraft.

Zach Vasile

Tuesday, May 27, 2025 at 12:00 PM ET

Verified

Edited By: Steve Spears

A Boeing 777X at the Dubai Airshow [Credit: AirlineGeeks/William Derrickson]

Key Takeaways:

Boeing has developed and finalized a fix for the 777X's engine thrust link problem, caused by unintentional vibration, which previously paused testing.
The solution involves installing new, redesigned thrust links and implementing adjustments to prevent future vibration, with changes already in test aircraft and further improvements for production models.
Despite resolving this issue, the 777X program continues to face significant delays, with certification now expected late this year or early 2026, pushing its entry into service six years behind schedule.

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Boeing says it has developed a fix for a component problem that temporarily paused testing of its 777X last year.

The company said it is installing new, redesigned engine thrust links, which transfer thrust from the engine to the aircraft structure. Cracks in the original thrust links forced Boeing to suspend testing of the 777-9 in August 2024, as the aircraft was undergoing certification.