SEATTLE (Reuters) - Boeing resumed testing for its long-delayed 777X widebody jet on Thursday, with the first flight since the U.S. planemaker grounded the test fleet in August due to the failure of a key engine mounting structure.

Emirates president Tim Clark told BI that Boeing workers were unfairly treated by previous management, which prioritized profits over quality.

Boeing had a decent orderbook in December to cap a very bad year. But its deliveries for the month show it continues to struggle to rebound from the crippling strike earlier in the fall.

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Riyadh Air, the Saudi Arabian carrier seeking to compete with Emirates and Qatar Airways, will receive far fewer aircraft from Boeing Co. this year than originally planned, in a setback to the startup airline’s ambitious launch preparations.

Deliveries of new Boeing jets bounced back in December after a crippling labor strike that slowed production last fall, but the company's annual deliveries dropped in 2024 to the lowest level since the COVID-19 pandemic.

The T-7 program has been beset by design, testing and production issues that have caused its schedule to slip behind.

Boeing must turn its fortunes around this year to avoid falling further behind Airbus, which plans a production increase as it fixes its supply chain.

Boeing faced significant challenges in 2024, including supply chain issues and a strike, leading to a sharp decline in orders and deliveries. Learn more on BA stock here.

Boeing delivered less than half the number of commercial aircraft to customers than its European rival in 2024, The American aerospace giant reported on Tuesday that it supplied 348 jetliners during the year.

In December, Boeing delivered 30 airplanes as it restarted production of its bestselling 737 Max planes after the nearly eight-week machinist strike ended the month before. Deliveries are key for manufacturers because it is when customers pay the bulk of an airplane's price.

Boeing expects to reach a balance between supply and market demand for passenger jets by the end of the decade, an executive said on Monday.