Air Deccan is all set to buy 30 new ATR72-500 aircraft from Avions de Transport Regionale, a France-based aircraft manufacturer.ATR said in a statement here that it would also sell six second hand aircraft to Air Deccan. The delivery would begin this year. ATR72-500 aircraft would be delivered in a 72-seat configuration. Presently, Air Deccan operates 13 ATRs.