Legal Proceedings	12 Months Ended
May 31, 2017
Legal Proceedings
Legal Proceedings	15. Legal Proceedings We are not a party to any material pending legal proceeding (including any governmental or environmental proceeding) other than routine litigation incidental to our business except for the following: DynCorp International LLC v. AAR Airlift Group, Inc. On September 5, 2015, DynCorp International LLC ("DynCorp") filed a complaint in the United States District Court for the Middle District of Florida, Orlando Division (the "District Court"), accusing AAR Airlift Group, Inc. ("AAR Airlift"), a wholly-owned subsidiary of AAR CORP., of misappropriation of DynCorp information, including trade secrets, and other related allegations. DynCorp's complaint, which sought damages in an unspecified amount and a preliminary injunction, alleged that AAR Airlift engaged in this conduct in connection with the submission of proposals in response to the solicitation issued by the U.S. Department of State ("DOS") Bureau of International Narcotics and Law Enforcement Affairs, Office of Aviation ("INL/A") in support of the Global Aviation Support Services program. The INL/A contract was subsequently awarded to AAR Airlift on September 1, 2016 as described below under "Court of Federal Claims INL/A Proceeding". The District Court denied DynCorp's preliminary injunction motion, and on October 19, 2015, DynCorp filed an amended complaint with the District Court. On January 14, 2016, the District Court granted AAR Airlift's motion to dismiss DynCorp's amended complaint. On February 2, 2016, DynCorp appealed the District Court's order to the United States Court of Appeals for the Eleventh Circuit (the "Eleventh Circuit"). On November 21, 2016, the Eleventh Circuit reversed in part the District Court's dismissal of the amended complaint and remanded the case to the District Court for further proceedings. The District Court set a discovery schedule that ends September 1, 2017 and a trial date of April 2, 2018. On June 16, 2017, the District Court granted AAR Airlift's motion to stay the legal proceeding against AAR Airlift. The stay will remain in effect until the earlier of (a) November 1, 2017 or (b) the entry of a decision of the United Stated Court of Federal Claims ("COFC"), on DynCorp's protest of the award of the INL/A contract to AAR Airlift. The District Court's stay immediately halted all discovery and other activity in the DynCorp lawsuit. AAR Airlift will continue to defend itself vigorously against DynCorp's lawsuit, which it believes is entirely without merit.

15. Legal Proceedings

We are not a party to any material pending legal proceeding (including any governmental or environmental proceeding) other than routine litigation incidental to our business except for the following:

DynCorp International LLC v. AAR Airlift Group, Inc.

On September 5, 2015, DynCorp International LLC ("DynCorp") filed a complaint in the United States District Court for the Middle District of Florida, Orlando Division (the "District Court"), accusing AAR Airlift Group, Inc. ("AAR Airlift"), a wholly-owned subsidiary of AAR CORP., of misappropriation of DynCorp information, including trade secrets, and other related allegations. DynCorp's complaint, which sought damages in an unspecified amount and a preliminary injunction, alleged that AAR Airlift engaged in this conduct in connection with the submission of proposals in response to the solicitation issued by the U.S. Department of State ("DOS") Bureau of International Narcotics and Law Enforcement Affairs, Office of Aviation ("INL/A") in support of the Global Aviation Support Services program. The INL/A contract was subsequently awarded to AAR Airlift on September 1, 2016 as described below under "Court of Federal Claims INL/A Proceeding".

The District Court denied DynCorp's preliminary injunction motion, and on October 19, 2015, DynCorp filed an amended complaint with the District Court. On January 14, 2016, the District Court granted AAR Airlift's motion to dismiss DynCorp's amended complaint. On February 2, 2016, DynCorp appealed the District Court's order to the United States Court of Appeals for the Eleventh Circuit (the "Eleventh Circuit").

On November 21, 2016, the Eleventh Circuit reversed in part the District Court's dismissal of the amended complaint and remanded the case to the District Court for further proceedings. The District Court set a discovery schedule that ends September 1, 2017 and a trial date of April 2, 2018.

On June 16, 2017, the District Court granted AAR Airlift's motion to stay the legal proceeding against AAR Airlift. The stay will remain in effect until the earlier of (a) November 1, 2017 or (b) the entry of a decision of the United Stated Court of Federal Claims ("COFC"), on DynCorp's protest of the award of the INL/A contract to AAR Airlift. The District Court's stay immediately halted all discovery and other activity in the DynCorp lawsuit.

AAR Airlift will continue to defend itself vigorously against DynCorp's lawsuit, which it believes is entirely without merit.