This is a sole source contract modification to Boeing for additional quantities of Defective Seeker and Sustainer Section repairs for the Harpoon/SLAM-ER Weapon System. Contract award is anticipated for the 4th quarter of Fiscal Year 2026. The work will be performed at Boeing's facility in St. Louis, MO. The government justifies sole source procurement because Boeing is the sole designer and owner of the necessary technical data for the system. Small businesses interested in subcontracting opportunities should contact the listed Boeing representative.