Sirio S.p.A announced it has successfully achieved renewal of the Stage 3 registration for the International Standard for Business Aircraft Operations (IS-BAO™), which it now holds continuously since 2015. The International Standard for Business Aircraft Operations, developed by the International Business Aviation Council (IBAC) and its member associations, is a recommended voluntary code of best practices designed to help flight operations all over the world achieve high levels of safety and professionalism in their operations. IS-BAO Stage 3 is achieved when the operator verifies that safety management activities are fully integrated into the operator’s business and that a positive safety culture is being sustained.
“The achievement of IS-BAO Stage 3 has considerably enhanced our Safety Management System, teamwork, and personal growth,” commented Pier Carlo BUSATO, Sirio Accountable Manager, and Tom ENGELHARD, Sirio CEO, added, “IS-BAO is the business aviation standard recognized around the world and we are very proud of this accomplishment, it is a testament to our team’s commitment to safety and their ability to work together to establish a strong safety culture. For the last 37 years, safety was at the core of everything we do, and the renewal of Stage 3 registration again demonstrates our uncompromising dedication to safety, operational excellence and professionalism to our clients and our colleagues.”
Sirio S.p.A. was established in 1984 in Milan, Italy and has grown into a unique Aircraft Management and Maintenance organisation, with a boutique-style approach to truly personal, tailor-made, and transparent client relationships.
The Aircraft Management division of Sirio S.p.A. operates a fleet of a dozen large and ultra-long range aircraft and the Maintenance Organization is currently certified for 12 different aircraft types and 28 variants of various manufacturers. It holds EASA and UK CAA Part 145, as well as US FAA Repair Station licenses.
Since 2018 Sirio has been proud to be part of Directional Aviation, one of the world’s largest aviation portfolios and home to some of the most respected private aviation companies around the globe. Learn more at sirio.aero.

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