Milestone Aviation
Sean O'Sullivan is an experienced aviation professional with a strong background in technical management and maintenance. Currently serving as Vice President of Technical at The Milestone Aviation Group since January 2013, Sean has previously held key positions including Maintenance Post Holder at the National Flight Centre and Continuing Airworthiness Manager/Maintenance Manager at Premier Helicopters Ltd. Their extensive career also includes roles as Deputy Maintenance Manager and Rotorcraft Mechanic/Engineer. Sean's educational credentials include a Bachelor of Engineering in Aviation Technology from Technological University Dublin, a HETAC Diploma in Quality Assurance, and a NCEA Certificate in Manufacturing Engineering from Dundalk Institute of Technology, complemented by training from the Irish Aviation Authority.
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Milestone Aviation
Milestone Aviation is an unrelenting team of experts who draw on our vast global resources and deep expertise in helicopter operations and asset management to create long-term, mutually beneficial partnerships for operators of all sizes. Founded in 2010 by aviation and leasing industry veterans, our team was first to establish global long-term helicopter leasing as an alternative financing option for an underserved sector that lacked access to capital. The AerCap acquisition of Milestone in 2021 added unparalleled financial strength and stability, as well as 50 years of aviation and leasing experience to our already strong team. Pushing past traditional leasing programs, we can now offer comprehensive debt solutions, short-term lease options, long-term asset management programs and flexibility—not available anywhere else in the industry. Now the leader in every industry category, we refuse to rest on our laurels. Instead, our legacy will be defined by how much higher we can lift our clients’ businesses.