The Department of Defense, specifically the Department of the Army, is seeking potential sources to provide field technical assistance, system overhaul, system RESET, and repair of spares for the AN/TPN-31 Air Traffic Navigation Integration and Coordination System (ATNAVICS) and the AN/FPN-67 Fixed Base Precision Approach Radar (FBPAR). The procurement aims to identify qualified vendors capable of addressing the necessary software changes and repairs, as the original developer, Raytheon Electronic Systems, holds proprietary rights to the software, which is not available for competitive procurement. These systems are critical for air traffic navigation and coordination, underscoring the importance of maintaining their operational integrity. Interested parties should contact Eric Fulmer at eric.j.fulmer.civ@army.mil or Shawn Jamerson at shawn.l.jamerson.civ@army.mil for further information regarding this opportunity.