Boeing to Inaugurate Fourth 737 MAX Production Line in Everett by Mid-Year

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Boeing is preparing a high-impact industrial move for its best-selling program. The American manufacturer will open a fourth 737 MAX production line in Everett, Washington, by the middle of this year. This represents both an operational and symbolic milestone for the most successful narrow-body aircraft in its portfolio.

“North Line”: Increased Capacity and a Historic Shift

The new line, internally dubbed the “North Line,” will be the first to produce the Boeing 737 outside of the Renton plant south of Seattle, where the program has historically been concentrated. To facilitate the startup, Boeing has already begun training the personnel who will operate the new facility, indicating that the industrial schedule is well underway.

From a strategic perspective, Everett—traditionally associated with wide-body programs—is regaining prominence at a time when market focus is clearly on the single-aisle segment.

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Production Ramp-up: Short to Medium Term

Boeing is currently increasing 737 MAX production from 38 to 42 aircraft per month. However, the plan is even more ambitious:

According to Katie Ringgold, Boeing Vice President and 737 Program General Manager, suppliers must prepare for an additional increase of approximately 15% over the next 18 months.

This aligns with the next target rate of 47 aircraft per month.

This phased approach is consistent with previous statements by CEO Kelly Ortberg, who noted that production increases will occur in blocks of five aircraft and no sooner than every six months.

Based on this logic, much of the market expects Boeing to reach 47 units per month by late 2026.

Ultimate Goal: 63 Aircraft per Month

Beyond the immediate horizon, Boeing remains focused on a key figure: 63 Boeing 737 MAXs per month. Ringgold was clear in stating that this level will be achieved “over several years,” a phrasing that suggests operational caution and a direct dependence on supply chain stability and industrial performance.

With Everett joining the 737 ecosystem, Boeing aims to rebuild volume, predictability, and industrial confidence in a program that remains the cornerstone of its future competitiveness.