AAR CORP

Evaluation of Disclosure Controls and Procedures

As required by Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, we conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as of February 28, 2026. This evaluation was carried out under the supervision and with participation of our Chief Executive Officer and our Chief Financial Officer. There are inherent limitations to the effectiveness of any system of disclosure controls and procedures. Therefore, effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives. Based upon our evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of February 28, 2026 to provide reasonable assurance that information required to be disclosed in the reports that are filed under the Securities Exchange Act of 1934 is recorded, processed, summarized, and reported in a timely manner.

There were no changes in our internal control over financial reporting during the quarter ended February 28, 2026 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. As permitted by the U.S. Securities and Exchange Commission, this evaluation excludes the operations of ADI and HAECO Americas, which were acquired during the nine-month period ended February 28, 2026.