Spirit AeroSystems said on Tuesday that Boeing will pay a total of up to $350 million in advance payments to the firm, providing the struggling supplier a lifeline as it continues to burn cash after four consecutive years of losses.

A Boeing 737 MAX-10 lands over the Spirit AeroSystems logo during a flying display at the 54th International Paris Air Show at Le Bourget Airport near Paris, France, June 22, 2023. REUTERS/Benoit Tessier