GE9X Engine Woes Ground Boeing 777-9 ETOPS Certification
The Boeing 777-9's ETOPS (Extended Twin Operations) certification and delivery timeline has been delayed due to an issue with the GE Aerospace GE9X engines' mid-seal. The Federal Aviation Administration (FAA) approval for extended-range flight tests is on hold pending resolution of this problem. This setback comes after Boeing revealed the issue in January 2026.
The mid-seal issue is a critical component of the GE9X engine, and its malfunction could have severe consequences for the aircraft's performance and safety. The FAA's delay in approving ETOPS flight tests will likely impact the delivery schedule of the 777-9, which was expected to enter service soon.
Boeing has not provided a revised timeline for resolving the mid-seal issue or reinitiating ETOPS certification process. As the aviation industry continues to face challenges, this delay is another hurdle for Boeing and its customers.