Boeing says its Air Force One replacement program has absorbed another major hit, with a fresh $280 million loss tied to work on the two new VC-25B aircraft. That additional charge pushes the company’s total cost overruns on the project to roughly $3 billion.

The latest update underscores how expensive and difficult the long-running program has become for Boeing. According to the report, the company is again covering the extra costs itself as it works to complete the aircraft, rather than passing those overruns along.

The schedule has also continued to slide. Boeing now says the first fully equipped VC-25B jet is expected in 2028, extending a delay that has already stretched years beyond earlier expectations for the Air Force One replacement effort.

The new loss adds to investor and industry scrutiny around Boeing’s defense programs, especially high-profile projects with repeated delays and rising internal costs. For the Air Force One replacement, the latest charge is another sign that the VC-25B program remains a costly challenge even as Boeing aims to finally move the first aircraft toward delivery.