GE9X Engine Issue Delays Boeing 777-9 ETOPS Certification

Boeing's 777-9 aircraft faces a potential delay in achieving Extended Twin Operations (ETOPS) certification due to an issue with the General Electric GE9X engine's mid-seal. The ETOPS certification is the final evaluation phase before the aircraft can be delivered to customers.

The mid-seal issue was identified during testing, and Boeing has stated that FAA approval for ETOPS flight tests is on hold pending resolution of the problem. This delay could impact the delivery schedule of the 777-9.

GE Aerospace has issued a statement regarding the issue, but details about the solution or timeline are not provided in the source.