Special Notice: DEPT OF DEFENSE, DEPT OF THE AIR FORCE is procuring airframe structural components (PSC code: 1560) including ribs, stiffeners, airfoils, and flap track assemblies. These components are typically used in aircraft construction and maintenance. The specific items being procured include various ribs, stiffeners, airfoils, and flap track assemblies with different part numbers and revisions. The quantities and sizes of these components are not specified in the notice. The procurement is being conducted by the FA8221 AFNWC PZBB office.