Walkaround

Boeing

777 and 777X

777-200ER, -300ER, 777-8, 777-9, 777-8F

in production GE90, GE9X 5 min read · updated 5 November 2026 · checked 6 November 2026

Two independent sources on every claim.

Boeing 777 and 777X
Photo: Verril Ginting, CC BY-SA 4.0, via Wikimedia Commons

At a glance

Type card

In service variants777-200ER, 777-200LR, 777-300ER, 777F
In development777-8, 777-9, 777-8F
EnginesGE90 on current build, GE9X on the 777X
Typical seating300 to 425
Status777X in flight test, current 777 in production
Launch customer for 777-9Lufthansa

Program and production

The 777X remains the most delayed major programme in commercial aviation, and 2026 added another year to it. The head of the FAA has indicated the regulator is unlikely to certify the 777-9 within this calendar year, pushing certification and first delivery into 2027, roughly seven years behind the original 2020 service entry target.

Boeing's public position is that no new technical problem has emerged and that the delay is a function of a certification process that tightened after the 737 MAX accidents. That sits awkwardly next to a specific engine issue: a crack found in January 2026 in the GE9X's mid seal, between the engine's front and rear sections, triggered a redesign, with modified engines only reaching Boeing in the third quarter. An FAA official told FlightGlobal that the agency will not certify the 777-9 until the redesigned seal itself is approved, a tighter gate than the ETOPS campaign alone. GE said in late October it is targeting that approval by year end, though Boeing says some flight testing could still slip into 2027.

In plain terms

ETOPS lets a twin engine aircraft fly further from the nearest diversion airport, which is what makes long overwater twin engine routes possible. Before a jet can be certified for that, its engines have to complete a dedicated flight test campaign proving they can handle an extended single engine diversion.

For Lufthansa as launch customer, the practical result is continued uncertainty about an aircraft it expected in early 2027. Emirates, the largest 777X customer by volume, has responded by investing heavily in keeping its A380 fleet flying into the 2040s rather than waiting.

The first 777-8F rolled out of final assembly at Everett on 23 April 2026, built for Cargolux. The programme holds more than 80 firm orders, including 34 from Qatar Airways Cargo. First delivery targets 2028.

The risk to that schedule from a labor dispute was resolved on 1 October 2026, when SPEEA's roughly 17,000 Boeing engineers and technical workers ratified new four year contracts with a 10 percent wage increase, ending a strike authorization that Boeing's leadership had said would freeze 777X certification testing.

The current generation 777F lost roughly two months of production this autumn to a separate supplier dispute. Boeing sued Vaero, a Jacksonville, Florida maker of the wing's trailing edge rib kits, in August 2026, saying Vaero had stopped delivering the kits while seeking a large price increase on a part Boeing says it has no other source for. The two sides settled in late September, but Reuters reported on 23 October that 777F final assembly had still not restarted, with Boeing citing costs of up to 6.5 million dollars a day. Boeing's chief financial officer said on 27 October that shipments had resumed, though the resulting parts gap will keep affecting output for a few more quarters. Boeing is reportedly working to bring rib kit production in house.

On the line

The 777X is unaffected, since its composite wing uses a different rib design. On the 777F or 767 line, expect uneven work packages from this parts gap for a few more quarters rather than a clean resolution.

The FAA also approved an exemption from the ICAO emissions and noise standard taking effect 1 January 2028, which would otherwise have stopped new 777F airworthiness certificates from that date. It lets Boeing sell up to 35 more 777Fs through 1 January 2031, bridging the gap until the 777-8F is ready.

Technical and maintenance

The FAA adopted AD 2026-19-04 on 28 September 2026, covering all 777-200, 777-200LR, 777-300, 777-300ER and 777F series airplanes, effective 2 November 2026. It follows a report of an alternating current motor pump, the electric pump that drives hydraulic pressure, overheating and causing a fire in a main landing gear wheel well. Investigators traced the cause to a missing lock washer and nut in the pump's electrical load control unit, which let two phase power reach the motor instead of three. The directive requires a records check or inspection for the affected pump, part number 731966, replacement of any found with a modified part, and bars further installation of the old part number. Roughly 290 US registered aircraft are affected.

On the line

Pull the part number for every ACMP in the fleet against 731966 before the 2 November effective date. A records check clears most aircraft quickly, but any airframe that cannot be cleared by records needs the physical inspection scheduled ahead of the compliance date rather than at the next heavy check.

Otherwise the maintenance story is ageing. The 777-200ER fleet is flying well past planned retirement because 787 and 777X deliveries are late, with familiar consequences.

On the line

Extending a widebody beyond its planned retirement changes the maintenance economics of the next heavy check, a deep inspection that takes an aircraft out of service for weeks. Work that would have been deferred to the end of life now has to be done properly, and corrosion findings on high cycle 777-200ERs are worth budgeting for rather than being surprised by.

Orders and operators

Cargolux is managing the 777-8F delay by buying 747-400Fs from China Airlines rather than waiting, a decision Air Cargo News reported in July 2026 as driven directly by the slip. The 777X backlog is large and largely intact, but fleet plans built around it have all had to absorb several years of delay.

Ethiopian Airlines signed a firm order on 30 September 2026 for eight 777-8 Freighters and two current production 777 Freighters, Boeing's own announcement said, making Ethiopian the first African carrier to buy the 777-8F. Travel Extra reported the same signing, with the 777Fs due in 2027 and 2028 and the 777-8Fs between 2033 and 2035.

Safety

No significant developments since 21 September 2026.

No new accident investigation involving the type opened in this period.

Sources