The government anticipates awarding a five-year sole source contract to Lockheed Martin Corporation for engineering services to sustain the AAQ-13 Navigation Pod and related components. The period of performance consists of one 12-month basic period and four 12-month ordering periods. Services will be performed at Robins Air Force Base, GA, or at subcontractors' facilities. The work involves resolving maintenance and obsolescence issues, integration support, sustainment studies, and reviewing engineering changes. While the government intends a sole source award, it will review capability statements from other responsible sources, though foreign prime contractors are not permitted.