WOOD DALE, IL, Dec 5, 2025 – AAR CORP. appointed Sarah Flanagan as interim chief financial officer, effective Dec. 11, 2025. Flanagan now serves as vice president of financial operations and will take over from Sean Gillen, who will depart AAR to pursue another opportunity.
Flanagan joined AAR in 2012 and has held several roles in the company’s finance group, including group chief financial officer. She was named as an Officer of the Company in 2017. Before AAR, she worked in FP&A, controller, and Group CFO roles at Honeywell International and as an auditor at PwC.
“I want to thank Sean for his many contributions as CFO over the past seven years,” said John M. Holmes, AAR’s chairman, president and CEO. “Sean’s experience has played a key role in executing on our strategy to reposition and enhance AAR’s portfolio to focus on higher growth, higher margin businesses over the last few years. We wish him the best in his new role.”
Holmes continued, “We are fortunate to have a deep bench of strong talent at AAR, and Sarah brings vast industry knowledge and extensive experience across AAR’s global operations. Sarah and I have worked closely during her 13 years at AAR, and I am excited she will lead our finance organization during this interim period.”
Source: AAR
About AAR
AAR CORP., founded in 1955 and headquartered in Wood Dale, IL, is a provider of aviation services to commercial and government operators, maintenance, repair, and overhaul (MRO) facilities, and original equipment manufacturers (OEMs). The company offers a range of services, including parts supply, integrated solutions, repair and engineering, and expeditionary services. AAR serves industries such as aerospace and defense, providing support for both fixed-wing and rotary-wing aircraft. With operations in over 20 countries, AAR employs approximately 6,000 people globally.