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Boeing Adds Fourth 737 Max Line Near Seattle

Summary

  • Boeing established a new 737 Max assembly line on Friday.
  • The new line is Boeing's fourth for the 737 Max model.
  • Output from the new factory will initially be at a low rate.
Boeing Adds Fourth 737 Max Line Near Seattle

Boeing Co. initiated operations at its fourth 737 Max assembly line near Seattle on Friday, July 10, 2026. This strategic expansion is designed to capitalize on the company's increasing order backlog for the popular aircraft model.

The new assembly line is situated within Boeing's existing Everett site. This facility is predominantly used for the production of the manufacturer's widebody aircraft models. Despite the opening, output from this latest line will commence at a measured, low rate as operations ramp up.

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