Spirit AeroSystems Holdings Inc., which builds most of the jet’s frame in Wichita, Kansas, is shipping about nine 737 fuselages each week to Boeing in Renton, Washington, said another customer, who asked not to be identified. That works out to about 36 jets a month, as Boeing tests its assembly lines before officially adopting the 38-jet monthly limit.
Boeing Co has told customers that it’s approaching a key production target that would signal manufacturing of its all-important 737 jet is back on track following last year’s harrowing mid-air accident.
The planemaker is loading its 737 final assembly lines to build 38 of the narrowbody aircraft a month, the maximum allowed by the Federal Aviation Administration, said John Plueger, the chief executive officer of Air Lease, the largest US aircraft financier.

