Boeing is negotiating to buy Spirit AeroSystems to tackle quality control issues following a 737 Max incident.

Spirit AeroSystems, once part of Boeing, depends heavily on it for revenue, with the remainder coming from Airbus.

Spirit may sell its Northern Ireland facility that supplies Airbus amid scrutiny from a 737 Max part deficiency.

The FAA grounded the 737 Max temporarily after a report on missing bolts, suggesting quality oversight failures.

Boeing's response includes leadership changes in the 737 Max program and hiring a quality assurance advisor.

Acquiring Spirit AeroSystems could strengthen Boeing's control over production and enhance flight safety.

The acquisition would have financial consequences for Boeing, potentially affecting its debt reduction efforts.