The EBAA has awarded six Safety of Flight Awards this year, including three platinum awards for 50 years or 100,000 hours without an accident. DC Aviation, a gold award winner, has also recently renewed its IATA operational safety audit – a rare achievement among business aviation operators.  All commercial airline members of IATA are required to pass the organisation's operational safety audit (IOSA) as a condition of membership, but only a few of Europe's largest business jet operators, including Jetalliance of Austria, NetJets and PrivatAir, have subjected their operations to the same scrutiny. DC Aviation has recently passed such an audit for the third time.  The IOSA reviews the safety and quality assurance of an airline's operational management and control systems. More than 350 airline companies worldwide subject themselves to these rigorous demands, but there are only a few business jet operators that do the same.  DC Aviation believes it is setting new standards in this area. In March, five auditors at DC Aviation reviewed over 960 standards and processes in all areas related to aviation law, ranging from technology and safety to quality management and flight operations. This year approximately 50 new questions had to be answered, compared to the previous audit in 2009.  "DC Aviation is the only Germany-based operator of business jets that, for years, has been able to attest to the high safety standards at the demanding level established for airlines due to the IOSA certificate," the company says.  The 2011 EBAA Safety of Flight Awards were presented to six organisations for outstanding safety records, during a post-European Business Aviation Safety Workshop cocktail reception.  Aero-Dienst, Gestair and PrivatAir received the highest platinum award, while Tyrol Air Ambulance, Robert Bosch and DC Aviation were awarded the gold award for 40 years or 80,000 hours without an accident.  Tyrol Air Ambulance is the first air ambulance company to receive the award. Transporting 3,000 patients a year, the company has flown 81,000 ambulance flight hours in four decades without an accident.  Operating from Innsbruck, Austria, the company has carried more than 46,000 patients, including vips such as the former Czech president Vaclav Havel and the late British prime minister Edward Heath. The company has been recognised for its airlifts for children from crisis regions, including Chernobyl (1986), Romania (1989/90) and Croatia (1991/92).