Boeing Lags Behind on 777X Certification Schedule

More delays sit on the horizon amid ‘mountain of work’ left to complete.

Caleb Revill

Saturday, September 13, 2025 at 10:00 AM ET

Verified

Edited By:

Travis Tingle

Boeing's 777X [Credit: Boeing/Paul Weatherman]

Key Takeaways:

Boeing's 777X aircraft certification is experiencing further delays, pushing its expected delivery date back to 2026, six years later than originally anticipated.
The prolonged and complex certification process, including extensive testing and past issues, is causing significant financial losses for Boeing.
These certification struggles extend beyond the 777X to other models like the 737 Max 7 and 10, prompting the FAA to propose modernizing and streamlining its aircraft certification standards.

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Boeing is falling behind its schedule to certify the 777X aircraft with regulators next year, a delay that could further push back a program already six years late.

Speaking at a Morgan Stanley conference on Thursday, Boeing CEO Kelly Ortberg confirmed the new widebody jet’s certification is taking longer than expected, though he noted that test flights have not revealed any new technical problems with the jet or its engines.