The Federal Aviation Administration (FAA) has expanded its investigation into Boeing, a leading aerospace giant.

The focus of the probe has widened, with the FAA now closely examining a subcontractor, Spirit AeroSystems utilised by Boeing in its manufacturing processes.

The aerospace industry has been under heightened scrutiny, especially in the wake of recent safety concerns and incidents.

The FAA’s decision to broaden its investigation indicates a growing need for a comprehensive understanding of the factors contributing to safety issues in Boeing’s 737 Max 9 aircrafts.