777X certification advances to Phase 4A amid delays
Key Questions
What is the current certification phase for the 777X?
The 777X has advanced to FAA Phase 4A in March 2026, with production starting April 2026 and entry into service in 2027. This follows six years of delays.
What are the delays and costs associated with the 777X?
The program is six years late and $15 billion over budget, with 30 built jets undergoing rework. It supports a $190 billion backlog.
How does the Airbus A350F compete with the 777X freighter?
Airbus completed the largest composite cargo door for A350F, targeting 2026-27 testing with 111t payload and 20% greener efficiency. This challenges the delayed 777X freighter's 2028 EIS.
FAA Phase 4A Mar'26/prod Apr'26/2027 EIS/6yr late/$15B over/$190B backlog/30 jets rework/GE9X; Emirates proposes 777-10 stretch; LH '26 entry aids FCF vs Airbus; Airbus A350F hits milestone with largest composite cargo door complete for '26-27 testing/111t payload/20% greener, challenging delayed 777X freighter '28 EIS. Ongoing fixes to 30 built jets; deliveries pushed to 2027.