The airframe manufacturer will get a new cash infusion from its major customer to ensure it can remain financially stable and maintain inventory, reduce operating expenses,

In April, Boeing provided a $425 million advance to support Spirit's liquidity. Spirit, Wichita's largest employer with around 12,800 full-time workers, previously disclosed it has spent all of that money, as well as the entirety of a $350 million bridge loan that was set up earlier this year.

Boeing has agreed to loan aerostructures manufacturer Spirit AeroSystems up to $330 million, a move coming just days after Spirit warned that a cash crunch threatened the viability of its business.