This document outlines a federal solicitation for the repair of Joint Helmet Mounted Cueing Systems. The solicitation number is FA853920R0010 and is seeking proposals for an Indefinite Delivery, Requirements type contract with Firm Fixed Price repair line items. The period of performance is three years consisting of a 12-month basic period and two additional 12-month ordering periods, plus an optional 6-month extension. The Department of the Air Force Materiel Command Air Force Sustainment Center is the contracting agency. The solicitation aims to provide repair services for over 908 Joint Helmet Mounted Cueing Systems currently installed on USAF F-15 and F-16 fighter aircraft, as well as over eleven FMS countries operating the system on their jets. Proposals are due by the date specified in the solicitation.