WICHITA, Kan. -

Spirit Aerosystems celebrated the delivery of 5000 Next -Generation 737s Wednesday morning.  Representatives from Spirit and Boeing were onsite to help with the celebration. 

Spirit builds about 70% of the 737 for Boeing, including Fuselage.

Right now the Wichita facility delivers 42 a month. That will increase to 47 a month in 2017. Spirit began deliver Next-Generation 737s in 1998.

Spirit is currently helping design the next model of 737, the 737 MAX. 

The Wichita facility could begin production on the MAX next year.