Boeing sets July 6 launch date for new 737 MAX final assembly line in Everett as it targets higher output

Boeing will begin building its 737 MAX on a new final assembly line in Everett, Washington, with the company planning to load the first aircraft on July 6, Chief Executive Kelly Ortberg said in remarks carried by CNBC. The Everett project, Boeing’s North Line, is intended to expand the capacity of the single-aisle program and help Boeing move beyond its current production pace. The plan is especially relevant as Boeing works through a large 737 backlog while trying to stabilize manufacturing after years of disruption and regulatory scrutiny.

Boeing has been gradually increasing 737 MAX production. Reuters reported that the company is moving from 42 jets a month to 47, and is studying how to climb as high as 70 jets per month, while Boeing’s stated production goal is 63 jets per month. Ortberg also described the Everett line as a catalyst for reaching 52 jets per month, a threshold Boeing expects to begin next year. The changes matter because output limits imposed by the FAA shaped Boeing’s ability to deliver more airplanes, and Boeing has framed production stability and quality as prerequisites for any further increases.

Boeing described the North Line as its first 737 production capability at the Everett facility, where it will manufacture 737s. The company said the North Line will be capable of building all 737 MAX models, and that it will initially focus on the 737-8, 737-9 and 737-10. Boeing also said the Everett build process will largely replicate the 737 build process in Renton, Washington, but with an added element: the 737 Wing Transport Tool, which will ferry partially completed wings for final assembly in Everett.

As construction and tooling have reached readiness, Boeing said the North Line effort is now centered on hiring and training hundreds of additional teammates. Boeing’s April feature on the program said the team will blend newly hired workers with existing employees from Renton, Everett and Moses Lake, and that it will include workplace coaches and a coordination role tied to FAA and customer requirements. Boeing also described structured onboarding, including foundational training and structured on-the-job training that new mechanics complete in Renton before working in Everett.

Boeing said it will start operations through a low rate initial production (LRIP) phase once the line begins. LRIP is a deliberate early ramp designed to slow the build process so additional checks and adjustments can be made to support standard flow times later. Boeing added that the first airplanes produced on the LRIP line will be used to demonstrate conformity to the FAA, enabling the North Line to operate under Boeing’s production certificate, PC700. After LRIP and conformity airplanes are complete, Boeing said the Everett line will be integrated into the overall 737 MAX flow and production to add capacity for rates above 47 airplanes per month.

Even with a specific July 6 date for the first aircraft, Boeing has not provided a granular public schedule for how quickly it expects production to ramp from 47 toward 52. The public disclosures also do not spell out in detail what constraints might appear in the supply chain, how those constraints would be measured during LRIP, or what operational changes might be needed if Boeing’s stated thresholds slip. In addition, while multiple market reports cite Ortberg’s comments on the targets, Boeing’s own manufacturing feature does not include the July 6 start date.

For the weeks ahead, the key milestones to watch are whether the first aircraft is loaded on schedule at Everett, how smoothly the North Line completes LRIP and FAA conformity demonstrations, and whether Boeing can sustain the higher output pace as it integrates the North Line into the broader 737 MAX production system. Boeing’s next production review point, including its willingness to pursue even higher rates beyond 52, is likely to depend on both supply chain readiness and continued evidence that quality and compliance can be maintained at increased volume.