Boeing sends 1,000 Moses Lake mechanics to Renton and Everett

Simple Flying reports that Boeing has ended its six-year repair operation at Moses Lake, Washington, and is sending about 1,000 mechanics back to its main assembly lines in Renton and Everett. The goal is to kill "traveled work" before it happens: no more moving an incomplete jet to the next station while missing parts and wiring pile up.

Moses Lake was an unusual fix-it shop. After the 737 MAX groundings, Boeing parked hundreds of jets at Grant County International Airport and rebuilt them there. Simple Flying reports that restoring one stored MAX could take about as many labor hours as building it originally. At peak, the field held around 250 of the roughly 450 grounded MAX jets worldwide, and the rework burned millions of engineering hours.

The mechanics are moving from static airframes and open-ended job cards to a moving line with strict station times. Their new job is quality control at key milestones like wing-to-body joining and systems testing. If a part is missing or doesn't fit, the line is supposed to stop before the defect compounds.

Moses Lake won't be abandoned. Simple Flying reports roughly three dozen uncertified MAX 7 and MAX 10 variants still sit there, holding billions in parked capital. The FAA has certified the MAX 7 after changes to its engine anti-ice system. The MAX 10 remains stuck on a flight-guidance software workload issue under review. Boeing can't hand those planes to launch customers such as Southwest and United until that clears.

Why should a traveler care? Delivery delays are what push airlines to adjust fleet plans and add last-minute schedule changes. If Boeing can keep defects from reaching the end of the line, airlines get planes on time and passengers get more reliable schedules. That's the upside.

The risk is on the factory floor. Simple Flying notes that adding 1,000 mechanics to active lines could create crowding, and Boeing still depends on suppliers sending complete, correctly built parts. Spirit AeroSystems and engine makers are part of that chain. Late panels or wiring harnesses can bring traveled work right back.

Bottom line: Boeing is betting that fixing a plane while it's still on the line is cheaper than dismantling it after delivery. If the bet works, deliveries speed up and airlines can plan. If it doesn't, the next repair shop is just another building.

• 737 MAX
• Boeing
• Everett
• FAA
• Moses Lake
• Renton