Airworthiness Directives; The Boeing Company Airplanes

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This proposed AD was prompted by reports of cracks in the skin and a certain chord at three fastener locations common to the drag link assembly at the chord. This proposed AD would require repetitive inspections of the skin under the drag link assembly for any cracks, and applicable on-condition actions. We are proposing this AD to address the unsafe condition on these products.