Helicopter Bell OH-13S Sioux Serial 3998 Register ES708 used by Elliniki Aeroporia Stratou HAA (Hellenic Army Aviation). Aircraft history and location Aircraft History ES708 Elliniki Aeroporia Stratou Hellenic Army Aviation FMS unk Circa 1973 23rd LAS at Sedes (LGSD) Send Updates Use APP to upload photo @ (optional) When Now? / / Send