NAVAIR's PMA-201 intends to award a sole-source firm-fixed-price delivery order to Boeing for Engineering Change Proposal 4468, providing operational flight software support for the Brazilian Air Force. The sole-source justification cites Boeing as the only responsible source with the proprietary technical knowledge and capabilities for the Harpoon/SLAM ER missile systems. Interested parties may submit capability statements for consideration, though the government retains discretion not to compete the effort. Subcontracting opportunities may be available through Boeing. No specific timelines or budget amounts are stated.