Europe’s Airbus has finalized an agreement to take some assets from Spirit AeroSystems, both companies said Monday, completing a critical part of a transatlantic carve-up of the struggling supplier with US rival Boeing.

The agreement includes the sale of some fuselage assets and production at Spirit AeroSystems’ Wichita, Kansas, factory.

Airbus will buy some Spirit AeroSystems facilities that make parts for its jets, moving to take direct control of production in a bid to stabilize supply chains after months of disruption.