Boeing fell to an annual loss of $11.8 billion after a lengthy strike by 33,000 machinists stalled production.
The company’s biggest annual deficit since the pandemic in 2020 came as a fourth quarter operating loss of $4 billion was reported.
Boeing resumed production of 737s in the quarter after the seven-week walkout was resolved and plans to gradually increase the rate.
The 787 programme ended the year at a production rate of five a month.
US Federal Aviation Administration certification flight testing of the long-range 777X (pictured) resumed this month, and the company anticipates first delivery of the 777-9 in 2026.
Boeing’s commercial aircraft arm booked 204 net orders in the quarter, including 100 B737-10s for Pegasus Airlines and 30 B787-9s for Flydubai.
The division delivered 57 aircraft during the three months compared to 157 in the same period a year earlier and still has a backlog of more than 5,500 valued at $435 billion.
Boeing made 348 deliveries across the year, down 34% on 2023, and attracted 279 net orders.
The US manufacturer has been plagued by safety issues after two crashes involving 737 Max 8s in 2018 and 2019, which killed 346 people. A panel fell off a new Alaska Airlines 787 Max 9 a year ago, resulting in Boeing paying $160 million in initial compensation.
Chief executive Kelly Ortberg said: “We made progress on key areas to stabilise our operations during the quarter and continued to strengthen important aspects of our safety and quality plan.
“My team and I are focused on making the fundamental changes needed to fully recover our company’s performance and restore trust with our customers, employees, suppliers, investors, regulators and all others who are counting on us.”