Used on helicopter, mh-53e, airborne mobile dir air spt ctl (21d), (02m jul 83) (an/uyq-3a); radar set, lightweight 3d (an/tps-59); teletype, model 28; tactical air opns module (an/tyq-(23); radar set, firefinder (an/tpq-36); aircraft, c-2a (reprocured); support equipment, mx peacekeeper missile; ground mobile force satellite comm term (an/tsc-93a); digital group multiplexer, an/trc-138,-173,-174,-175. weapon system essential