Boeing inked a deal Thursday for five Japanese companies to manufacture key components for its twin aisle 777X jets but the contract doesn't include making the wings, which were a source of delays for the 787 Dreamliner.
The Japanese manufacturers will make about 21 percent of the new plane's structural components, including fuselage sections and landing gear wells.
Difficulties in fitting the wings to the body of Boeing's Dreamliner in the U.S. contributed to delays during the manufacturing of the aircraft. The Japanese furnish about 35 percent of the 787, which was the first Boeing plane to have a wing designed and built by a foreign company. Deliveries were delayed for about three years because of various problems.