Update 4:23pm: Adds Spirit confirmation. Airbus (OTCPK:EADSY) agreed to provide revised funding terms to Spirit AeroSystems (NYSE:SPR) as the aircraft parts maker struggles with its finances. Spirit shares fell 1.1%. Airbus (OTCPK:EADSY) agreed to provide ...

Boeing has agreed to pay Spirit AeroSystems up to $350 million in advance to keep producing products for it as the fuselage supplier works through a liquidity crunch. The jet maker said Tuesday that the advance payments are intended to help Spirit address high levels of inventory and lower operational cash flows.

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 give Spirit AeroSystems , the company that develops aircraft fuselages, a hefty financial boost. The US planemaker will provide up to $350 million in advance to support the production of products as the supplier grapples with a liquidity crisis.

Hours after announcing it will receive up to $350 million in advance payments from Boeing, Spirit said it has an updated memorandum of agreement with Airbus stating the European aerospace giant will provide the major supplier with a $107 million non-interest-bearing line of credit.

By David Shepardson, Allison Lampert and Tim Hepher (Reuters) -Spirit AeroSystems said on Tuesday it would receive up to $350 million in advance payments from its largest customer Boeing, giving the struggling supplier a lifeline as it burns cash after four consecutive years of losses.