Airworthiness Directives; The Boeing Company Airplanes

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The FAA proposes 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 missing shims, a wrong type of shims, shanked fasteners, fastener head gaps, and incorrect hole sizes common to the left and right side at a certain station (STA) frame inner chord and web. This proposed AD would require inspecting for existing repairs, inspecting the area for cracking, and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.