Boeing 777X   Aircraft Manufacturing (OEMs)   Aviation Safety & Regulation   Boeing  

FAA withholds 777-9 certification pending redesigned engine seal; Boeing says 2026 deliveries remain on track

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Boeing says it still lacks FAA approvals needed to conduct substantial portions of the 777-9 flight-test program. The regulator will not certify the widebody until it approves a redesigned engine seal, while Boeing maintains that it can begin deliveries next year despite the program’s prolonged delays.

Discovered 2026-10-27T19:04:47.895457-07:00 | 2026-10-27T19:04:47.895457-07:00

Briefing

What Hype is tracking

  • The redesigned engine seal is a certification gate: the FAA will not approve the 777-9 until it accepts the change, tying delivery timing to both the redesign and regulatory review.
  • Boeing says substantial portions of flight testing still lack FAA approval, yet maintains its plan to begin deliveries next year—an important schedule claim for customers planning fleet transitions and for suppliers managing program commitments.

Reported By

FlightGlobal
Sources Tracked
1
First Seen
2026-10-27T19:04:47.895457-07:00
Latest Update
2026-10-27T19:04:47.895457-07:00
Coverage
Aviation

Sources

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