Boeing to ask Japanese firms to build a fifth of 777X -sources
April 28, 2014 at 06:50 AM EDT
TOKYO, April 28 (Reuters) - Boeing Co has lined up Japanese companies, including Mitsubishi Heavy Industries and Kawasaki Heavy Industries, to build one-fifth of its latest plane, the 777X, retaining Japan as its key Asia partner in commercial jetliners, two sources with knowledge of the U.S. company's production plan said.