-Boeing ( BA ) said on Monday it would buy its struggling supplier Spirit AeroSystems ( SPR ) in a $4.7 billion all-stock deal which was finalized after months of talks, as the aerospace giant tries to solve a full-blown safety and regulatory crisis that has engulfed its key supplier as well.

The total transaction value is about $8.3 billion, including Spirit's last reported net debt, Boeing ( BA ) said.

The company added that each share of Spirit common stock will be exchanged for a number of shares of Boeing ( BA ) common stock equal to an exchange ratio between 0.18 and 0.25, resulting in an equity value of about $37.25 per share.

Boeing ( BA ) said that Airbus will acquire certain commercial work packages that Spirit performs for Airbus with the closing of the Boeing-Spirit merger.

Boeing ( BA ) also said that Spirit is proposing to sell certain of its operations, including those in Belfast, non-Airbus operations in Northern Ireland, Prestwick, Scotland, and Subang, Malaysia.

The transaction is expected to close mid-2025.

The Spirit deal is part of a broader framework between Boeing ( BA ) and its European rival, Airbus, the two dominant global commercial plane manufacturers, to separate Spirit facilities.

The one-time Boeing ( BA ) subsidiary also supplies Airbus, which does not want Boeing ( BA ) making key parts for its aircraft.