Flight Origin Time/Days A/C Type Since Until СХТ 01/01/1976 03/31/1976 СХТ Daily 06/01/1976 09/30/1976 KHV 01/01/1976 03/31/1976 KHV Daily 06/01/1976 09/30/1976 OVB 01/01/1976 03/31/1976 OVB Daily 06/01/1976 09/30/1976