The troubled aerospace giant Boeing says it delivered just 348 aircraft to its customers last year, its lowest output since the pandemic. Boeing ended the year with a backlog of 5,595 unfilled orders.

A nascent recovery from Boeing’s troubles stalled in the fall when a 52-day Machinists union strike stopped almost all Boeing jet production in its Puget Sound assembly plants.

As Boeing has battled large headwinds, its archrival Airbus has expanded its delivery lead. Boeing commercial jet deliveries dropped last year by more than a third compared to 2023, as the aerospace giant wrestled with multiple major challenges.