https://phys.org/news/2019-03-boeing-business-usual-posture-media.html > Several employees working on the embattled 737 MAX plane don yellow vests and work in teams, with one group of staff gathered at a large table, poring over plane designs. > The new planes are painted green by Boeing before they are delivered to commercial airlines, which then give them a makeover with their corporate brands. On this day, three new aircraft are ready to leave the factory.