Boeing also said it remains focused on trimming capital expenditures — something analysts have been monitoring closely, with many of Boeing's biggest investments for 2017 already out of the way. The cost reductions are "remarkable," Jefferies analyst Howard Rubel told CNBC Wednesday. "It's speed, it's quality, it's all the things you want with a company. ... It makes us feel like [2018] and [2019] revenues will be better than [2017]," Rubel added. Boeing said it will cut full-year capital expenditures by $300 million.