John Holmes is Chief Operating Officer of AAR's Aviation Services segment.

Mr. Holmes oversees the business units that comprise AAR’s Aviation Services segment. These groups include the 1MRO network of heavy maintenance facilities, component repair shops and landing gear overhaul facility. In addition, the supply chain group includes engine and airframe parts supply, OEM parts distribution, commercial and government supply chain programs, along with Airinmar repair management. Holmes has led the double-digit growth of this growing group that serves commercial airline and government customers around the world.

Mr. Holmes joined AAR in 2001 as Director of Mergers and Acquisitions. He became General Manager of AAR Allen Aircraft parts trading in 2003 and assumed responsibility for AAR Distribution in 2004. In 2005, he merged the two groups into AAR Allen Asset Management to achieve greater operational efficiencies, expand AAR’s service offerings and improve customer service. In 2011, he led the acquisition of Airinmar to strengthen AAR’s program offering. In 2012, Mr. Holmes assumed responsibility for the Company’s Defense Systems and Logistics business and was appointed Group Vice President, Aviation Supply Chain. In 2013, he took on responsibility for the Company’s engine parts business, and in 2015 he was named COO of the Aviation Services segment.

Prior to joining AAR, Mr. Holmes spent time in investment banking and private equity.

Mr. Holmes earned a bachelor's degree in finance from the University of Illinois and an MBA from the University of Chicago.