SX-HAN Eurocopter SA318C Alouette II Astazou MSN 2352, Olympic Aviation - near Athens - 27-10-1972 - A NAMC YS-11A-500 passenger plane, registered SX-BBQ, was damaged beyond repair in an accident at sea near Athens-Ellinikon International Airport (ATH), Greece on October 21st, 1972. Olympic flight OA506 from Corfu carried 49 passengers and four crew members. Thirteen passengers and three crew members survived the accident.