First 737 MAX completes assembly in Renton, Wash., 2015.

Boeing to Add 737 MAX Assembly Line

Jan. 31, 2023
A fourth line will be set up in Everett, Wash., in place of the now discontinued 747 assembly line, as the OEM aims to increase its monthly production rate for the narrow-body aircraft.

Boeing Commercial Airplanes will set up a fourth assembly line for 737 MAX series jets in the second half of 2024, according to an internal announcement that the manufacturer has confirmed. The line will be installed in the Everett, Wash., plant now available since the end of production last year of the Boeing 747.

At the present time, 737 MAX final assembly is centered at Renton, Wash.

“This undertaking is significant,” Boeing Commercial Airplanes CEO Stan Deal wrote to employees. “In addition to preparing the facility, we have begun the process of notifying and preparing our suppliers, customers, unions and employees as we take the necessary steps to create a new line.”

The 737 MAX is Boeing’s best-selling aircraft, with over 500 net new orders logged last year. It reported more than 3,600 outstanding orders for the twin-engine, narrow-body jets at the end of December.

The 737 MAX series is available in four variants, two of which (MAX 7 and MAX 10) have not yet achieved FAA certification.

Currently, Boeing is completing about 31 new 737 MAX jets each month, with a targeted rate increase to 50 jets/month during 2025-26.

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