Boeing has halted the testing of its 777X aircraft due to the discovery of structural damage on one of the planes.

On Monday, Boeing announced it has halted flight tests for its 777X aircraft after discovering damage to a structural component. The issue was found during routine maintenance and involves a custom part located between the engine and the aircraft’s main structure. As a result, Boeing has grounded the remaining three 777-9 test planes. The company stated that no additional flight tests were planned for these aircraft at this time.

Boeing is currently replacing the damaged part and analyzing the issue to gather insights before resuming flight tests. They have notified the Federal Aviation Administration (FAA) and their customers, who have collectively ordered 481 units of the 777X, according to Boeing’s website.

The impact of this grounding on the certification and delivery timeline of the new wide-body jets, scheduled for 2025, remains uncertain. This delay adds to the aircraft’s already postponed timeline, which is about five years behind the original schedule. Boeing began flight tests with the FAA in July, marking a significant step forward.

This development, initially reported by The Air Current, comes as Boeing’s leadership, including new CEO Kelly Ortberg, works to overcome a series of safety issues that began with a door plug failure earlier in the year.

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