But almost a year after , 603d personnel were transferred to the other squadrons and the unit was inactivated .
Its four Companies ( A , B , C , D ) became the 601st , 602d , 603d and 604th Tactical Control Squadrons respectively .
Almost a year after , 603d personnel were transferred to the other squadrons and the unit was inactivated .
Its four Companies ( A , B , C , D ) became the 601st , 602d , 603d and 604th Tactical Control Squadrons respectively .