This solicitation is for the repair of the Joint Helmet Mounted Cueing System under an Indefinite Delivery, Requirements contract with Firm Fixed Price repair Contract Line Items. The JHMCS is currently installed on over 908 USAF F-15 and F-16 fighter aircraft as well as over eleven FMS countries' jets. The Period of Performance is three years from date of award, consisting of a 12-month basic period and two additional 12-month ordering periods, plus an optional 6-month extension. The solicitation was issued by the Department of the Air Force Materiel Command Air Force Sustainment Center for the repair of the JHMCS to support over 908 USAF aircraft and aircraft from eleven FMS countries that have the system installed.