Boeing employees in Renton, Washington have started building the first 737 MAX on schedule. Last week, employees started to assemble the wings for the first 737 MAX flight test airplane. Wings are the first 737 components to be assembled in the Renton production process.

“Employees in Renton are the best in the world at building single-aisle airplanes and now this world-class team is building the future with the first 737 MAX,” said Keith Leverkuhn, vice president and general manager, 737 MAX. “Achieving this milestone on schedule is a testament to the success of the 737 and our integrated design and build team.”

Machine operators loaded 737 MAX wing skin panels and stringers into the new panel assembly line that uses automation to drill holes and install fasteners in the upper and lower wing panels.

Mechanics also loaded the initial parts of the first 737 MAX spars – internal support structures in wings – into automated spar assembly machines.

The unfinished skins, stringers and spars were machined by Boeing Fabrication Skin and Spar in Auburn and Fredrickson, Wash. When finished, the panels and spars will be transformed into completed wings.