Boeing’s new 737 assembly line begins moving in Everett

• The new line replicates Boeing's three existing 737 assembly lines in Renton and won't contribute to rate increases until early 2027, with Boeing studying potential output of up to 60+ jets monthly
• FAA-imposed production limits following the January 2024 Alaska Airlines 737 MAX 9 midair incident forced Boeing to slow output while addressing quality and safety lapses
• The Everett facility has significant available space after ending 747 production and consolidating 787 assembly, as Boeing competes with Airbus A320neo in a market where airlines face years-long wait times

Boeing Launches Fourth 737 MAX Assembly Line in Everett

Key Developments:

Boeing commenced operations of a fourth 737 MAX assembly line on July 6, 2026, at its Everett, Washington facility. The new "North Line" represents a strategic expansion as the planemaker works to meet historically high global demand for single-aisle aircraft.

Production Timeline and Targets:

• The new line replicates Boeing's three existing 737 final assembly lines at its Renton plant near Seattle
• Not expected to contribute to production rate increases until early 2027
• Boeing aims to reach 52 aircraft per month in early 2027, with studies underway for further rate increases
• The company resumed limited production rate increases in June 2026 after FAA consultation

Background Context:

Boeing's expansion comes as the company recovers from significant setbacks, including the January 2024 Alaska Airlines door plug blowout incident on a 737 MAX 9. The FAA subsequently imposed production limits while Boeing addressed quality control issues and manufacturing lapses.

Facility Details:

The Everett plant, the world's largest building by volume, has considerable available space following the end of 747 production and consolidation of 787 assembly in South Carolina. The facility previously housed assembly lines for the 747, 767, 777, and 787.

Market Implications:

The 737 MAX directly competes with Airbus's A320neo family in the high-volume single-aisle market, where airlines currently face multi-year wait times for new aircraft. The production expansion is critical for Boeing's financial recovery after years of production disruptions, safety crises, and supplier constraints.