AAR Receives FAA Approval for 747-400 Oxygen System Retrofit
Advanced engineering capability demonstrated with innovative design
INDIANAPOLIS – AAR (NYSE: AIR) has received Federal Aviation Administration Supplemental Type Certificate (STC) approval to perform an oxygen system retrofit for a Boeing 747-400 cargo aircraft.
AAR’s design modifies the oxygen system of the 747-400 to provide additional, supernumerary occupants with the same quick-donning oxygen masks used by flight crews. The masks are mounted in ‘auto presenting’ mask boxes above the supernumerary seating. The new design also increases the aircraft’s total oxygen capacity to provide more than 180 minutes of oxygen in the event of cabin depressurization due to smoke or fire procedures.
“We are pleased to offer a safer means of supplying supplemental oxygen to supernumerary occupants of cargo aircraft, while reducing weight through the removal of portable oxygen bottles,” said Ron Eaton, Vice President, AAR Engineering Services. “Any airline operating B747 aircraft in a freighter configuration could benefit from this modification.”
The modification design was developed by AAR Engineering Services, whose personnel also managed the process to obtain the FAA’s STC approval. In addition, AAR provided the airline customer with custom modification kits produced at AAR Aircraft Services in Indianapolis, Indiana. The oxygen system retrofit was conducted at a third-party maintenance and modification facility in Asia, with support from a team of AAR Engineering Services personnel from Indianapolis and Singapore.
AAR Engineering Services provides a wide range of high-quality, cost-effective technical services, specializing in interior reconfigurations, structural and systems modifications, and avionics upgrades requiring FAA or other regulatory agency approvals.
About AAR
AAR is a global aftermarket solutions company that employs more than 6,000 people in over 20 countries. Based in Wood Dale, Illinois, AAR supports commercial aviation and government customers through two operating segments: Aviation Services and Expeditionary Services. AAR’s Aviation Services include inventory management; parts supply; OEM parts distribution; aircraft maintenance, repair and overhaul; engineering services and component repair. AAR’s Expeditionary Services include airlift operations; mobility systems; and command and control centers in support of military and humanitarian missions. More information can be found at www.aarcorp.com.
Contact
Media Team
Corporate Marketing & Communications
+1-630-227-5100
Editor@aarcorp.com
This press release contains certain statements relating to future results, which are forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on beliefs of Company management, as well as assumptions and estimates based on information currently available to the Company, and are subject to certain risks and uncertainties that could cause actual results to differ materially from historical results or those anticipated, including those factors discussed under Item 1A, entitled “Risk Factors”, included in the Company’s Form 10-K for the fiscal year ended May 31, 2018. Should one or more of these risks or uncertainties materialize adversely, or should underlying assumptions or estimates prove incorrect, actual results may vary materially from those described. These events and uncertainties are difficult or impossible to predict accurately and many are beyond the Company’s control. The Company assumes no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements or to reflect the occurrence of anticipated or unanticipated events. For additional information, see the comments included in AAR’s filings with the Securities and Exchange Commission.
Related news
See allAugust 12, 2025
AAR announces acquisition of maintenance planning software provider Aerostrat, expanding capabilities of Trax subsidiary
Wood Dale, Illinois — AAR CORP. (NYSE: AIR), a leading provider of aviation services to commercial and government operators, MROs, and OEMs, announced today it has acquired Aerostrat, a leading long-range maintenance planning software company, for a purchase price of $15 million plus contingent consideration of up to $5 million. The acquisition immediately expands the reach of AAR's software offerings and the enterprise resource planning system (ERP) capabilities of AAR’s Trax subsidiary.
August 11, 2025
AAR prices add-on offering of $150 million of senior notes due 2029
Wood Dale, Illinois — AAR CORP. (“AAR” or the “Company”) (NYSE: AIR), a leading provider of aviation services to commercial and government operators, MROs and OEMs, announced today that it has successfully priced its offering of $150 million aggregate principal amount of 6.750% senior notes due 2029 (the “Additional Notes”). The Additional Notes are being issued at a price of 102.000% of their principal amount, plus accrued interest from March 15, 2025, for a yield to maturity of 6.119%.
August 11, 2025
AAR announces proposed add-on offering of $150 million of 6.750% senior notes due 2029
Wood Dale, Illinois — AAR CORP. (“AAR” or the “Company”) (NYSE: AIR), a leading provider of aviation services to commercial and government operators, MROs and OEMs, announced today that it intends to offer, subject to market conditions and other factors, $150 million aggregate principal amount of 6.750% senior notes due 2029 (the “Additional Notes”). The Additional Notes will be issued as additional notes under an existing indenture dated March 1, 2024, pursuant to which the Company previously issued $550.0 million aggregate principal amount of 6.750% senior notes due 2029 (the “Existing Notes” and together with the Additional Notes, the “Notes”). Other than with respect to the date of issuance and the offering price, the Additional Notes will have the same terms as the Existing Notes.