AAR CORP. has announced that Sarah Flanagan has been named the company’s interim Chief Financial Officer, effective December 11, 2025. Flanagan, currently AAR’s Vice President, Financial Operations, will succeed Sean Gillen, who is departing the company to pursue an opportunity outside the aviation industry.
Flanagan joined AAR in 2012 and has since held roles of increasing responsibility within the finance organisation, including serving as group chief financial officer for the company’s largest business segment. Her financial stewardship has supported AAR’s continued growth, and in 2017 she was appointed an officer of the company. Before joining AAR, she held a variety of FP&A, controller, and group CFO positions at Honeywell International, Inc., and began her career as an auditor with PwC.
John M. Holmes, AAR’s Chairman, President and CEO, said he wished to thank Sean Gillen for his many contributions as CFO over the past seven years. He explained that Gillen’s experience had been instrumental in executing AAR’s strategy to reposition and strengthen its portfolio, focusing on higher-growth, higher-margin businesses. Holmes added that the company wished Gillen every success in his new role.
Holmes added, “We are fortunate to have a deep pool of talent at AAR, and Sarah brings extensive industry knowledge and broad experience across our global operations. Having worked closely with her throughout her 13 years at AAR, I am confident she will provide strong leadership for our finance organisation during this interim period.”
