Boeing will buy back Spirit Aero, a manufacturer of parts for its 737 and 787 planes, in a $4.7 billion all-stock deal, per Reuters.PATRICK T. FALLON/Getty ImagesBoeing is buying back Spirit Aero, a manufacturer of parts for its 737 and 787 planes, per Reuters.The $4.7 billion all-stock deal is set to be officially announced Monday, the outlet reported.The deal brings Spirit Aero back into Boeing's fold and should improve the production of its aircraft.Boeing is set to buy back Spirit AeroSystems, a manufacturer of parts for its 737 and 787 planes, in a $4.7 all-stock deal, according to a Sunday report from Reuters.The deal follows months of negotiations between the two aerospace companies and is intended to help address Boeing's ongoing safety crisis, the outlet reported.Boeing's stock has tumbled more than 27% this year following a series of manufacturing issues that have rippled through the aviation industry.