Availability Role(s) Era(s) Commissioned Destroyed Retired Present for battles/events Affiliation Fleet Task force Owner(s) Commander(s) Crewmembers Registration number(s) Aliases [Source] ATS-0121 was a GR-75 medium transport belonging to the Rebel Alliance during the Galactic Civil War. ATS-0121 was assigned to the Defiance Task Force and carried a cargo of heavy machinery, presumably brought aboard during the evacuation of Echo Base.