The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Warner Robins, Georgia, is conducting market research to identify potential sources for the production of Circuit Card Assemblies (CCAs) that support the Environmental Control System (ECS) tester used in F-16 aircraft. The specific CCAs in question are identified by NSNs 5998-01-087-7775 (P/N BH1994-2) and 5998-01-072-2441 (P/N BH1998-1), which are critical components for testing and troubleshooting various aircraft systems. Currently, Howell Instruments Inc is the sole known source capable of meeting the performance requirements due to their exclusive knowledge and possession of the necessary technical data. Interested parties are encouraged to express their capabilities by emailing Jerry Latimer at jerry.latimer@us.af.mil by December 5, 2025, although this announcement does not constitute a solicitation or commitment by the Government.