Boeing to rework 30 stored 777X jets before 2027 deliveries

September 6, 2026 at 06:30 AM1 min

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Boeing CEO Kelly Ortberg said about 30 already-built 777X aircraft will require a 'change incorporation' process before delivery. The rework stems from design changes identified during the prolonged certification flight test program. First 777-9 deliveries remain targeted for 2027.

Key Facts

Boeing CEO Kelly Ortberg disclosed on April 23, 2026, that approximately 30 already-built 777X aircraft will require a 'change incorporation' process before delivery.
First Boeing 777-9 deliveries remain targeted for 2027, with the certification program now in TIA phase 4a.
The 777X program was launched in 2013 and includes two main variants: the 777-9 with 426 seats and the 777-8 with 395 seats.
Older airframes require the most extensive modifications, including structural changes, while newer builds require only minor software and systems updates.

Rework Scope

Boeing has assembled a dedicated team for what Ortberg called a 'pretty massive activity,' planning to bring all stored aircraft to a common configuration before applying final changes over several years. The rework stems from design changes identified during the prolonged certification flight test program. Older airframes require the most extensive modifications, including structural changes, while newer builds require only minor software and systems updates.

Program Delays

The 777X has been in production for quite some time, earning the title of one of the most delayed aircraft in aviation history. As of early 2026, it remains in flight testing, with deliveries now expected to begin in 2027 following multiple delays. During Boeing's Q1 2026 earnings call on April 23, CEO Kelly Ortberg delivered another setback: approximately 30 already-built 777X aircraft will require a 'change incorporation' process before they can be delivered.