The Department of Defense, specifically the Department of the Army, is seeking sources for the procurement and repair of the TACAN-154 R/T, Position Indicator, and Radio Control systems, which are critical for the operation of UH-60 Blackhawk helicopters. The procurement aims to acquire parts and repair services for the Tactical Air Navigation System (TACAN)-154, which provides essential data regarding distance and bearing to ground or ship-borne stations. This initiative is vital for maintaining the operational readiness of Army aviation assets, with the current supplier being L3 Harris. Interested parties must submit their responses by November 1, 2024, to the primary contact, Mark Colangelo, at mark.w.colangelo.ctr@army.mil, or the secondary contact, Keith J. Hoskins, at keith.j.hoskins2.civ@army.mil, as this is a sources sought announcement for market research purposes only.