Aviation News – Boeing will open a fourth 737 MAX production line in Everett, Washington, this summer to boost output of its best-selling narrowbody jet and meet rising airline demand.
The new assembly line, known internally as the North Line, was announced Tuesday by a Boeing executive at an aerospace suppliers’ conference. It forms part of the U.S. planemaker’s broader strategy to steadily increase 737 MAX production as supply chains stabilize and airlines push for faster deliveries. Boeing is already raising monthly output from 38 aircraft to 42, with the Everett expansion aimed at supporting further growth.
The additional line will add manufacturing capacity alongside existing facilities, allowing parallel assembly of fuselages, wings and final systems installation. By spreading work across more stations, Boeing expects to improve throughput, shorten build times and reduce bottlenecks that have constrained deliveries in recent years. The move is also expected to create jobs and strengthen coordination with suppliers across the Pacific Northwest.
