Boeing is working to deliver new Air Force One planes, which have been delayed by four years. The company is putting significant resources into the project to meet the 2028 delivery goal. The effort to complete the modified 747-8 planes has been costly, with an additional $280 million spent last quarter.

This is part of a larger cost overrun, with the project's total cost now running into billions of dollars above initial estimates. Further details on the project and its challenges are available from the source, including a statement from Boeing's CEO on the company's efforts to get the project back on track.