Boeing Still Waiting on GE9X Seal Fix for 777X Certification
Boeing has booked roughly $15 billion in 777X charges, including a $4.9 billion late-2025 write-down, and still awaits a GE mid-seal fix ahead of planned 2027 delivery.
Business · 7 sources · Sep 17, 2026Read itThe journal
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About General Electric GE9X
The General Electric GE9X is a high-bypass turbofan developed by GE Aerospace exclusively for the Boeing 777X. It first ran on the ground in April 2016 and first flew on March 13, 2018; it powered the 777-9's maiden flight in early 2020. It received its Federal Aviation Administration (FAA) type certificate on September 25, 2020. Derived from the General Electric GE90 with a larger fan, advanced materials like ceramic matrix composites (CMCs), and higher bypass and compression ratios, it was designed to improve fuel efficiency by 10% compared to the GE90. It is rated at 110,000 lbf (490 kN) of thrust, which is 5,000 lbf (20 kN) less than the highest thrust variant of the GE90, the -115B.
Everything about General Electric GE9X →- Website
- https://www.geaviation.com/commercial/engines/ge9x-commercial-aircraft-engine