Some aircraft have had better safety records over the past decade than others, according to data produced by AirlineRatings. Not surprisingly, newer Western-built airliners, such as most Boeing, Airbus, Embraer and Bombardier models, are rated the safest. The least safe aircraft include the Czech Let-410, which has experienced 20 accidents over the past 10 years; both the Ilyushin Il-72 and Antonov An-12, which logged 17 each; and the de Havilland Canada Twin Otter, with 18.