This is a Sources Sought Notice for Airborne Position Location System (APLS) sustainment support services, seeking vendors capable of providing remote and on-site hardware/software warranty support. The performance location is Fort Bragg, North Carolina. The government is seeking capability statements from interested businesses, especially small businesses in various socioeconomic categories, to help determine if a future procurement can be set aside. Responses are requested by April 23, 2026, at 4:00 PM CDT. This notice is for planning purposes only and is not a formal solicitation.