Engineers at Boeing Co. have released more than 90% of the design drawings for the new Boeing Next-Generation 737-900, a ‘definitive milestone’ for the company according to vice president of 737/757 Derivative Programmes Jack Gucker.

Now most of the design drawings are complete parts for the new aircraft are being manufactured and delivered by worldwide suppliers while workers at the Boeing plant in Wichita have completed assembly of the fuselage for the first 737-900.