AAR CORP. has announced that Sarah Flanagan has been named the Company’s Interim Chief Financial Officer, effective December 11, 2025. Ms. Flanagan, AAR’s Vice President, Financial Operations, will succeed Sean Gillen, who will depart AAR to pursue another opportunity outside the aviation industry.

Ms. Flanagan joined AAR in 2012 and has held positions of increasing responsibility in the Company’s finance organization, including Group Chief Financial Officer for the Company’s largest business segment. Her financial leadership supported AAR’s growth, and in 2017, she was named an Officer of the Company. Prior to AAR, Ms. Flanagan served in various FP&A, Controller, and Group CFO roles at Honeywell International, Inc. 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.”