27 January 2020


CARROLL, OHIO—DELTA H commissioned a Dual Chamber Aerospace Heat Treat (DCAHT) to AAR Corp at Indianapolis International Airport.  

AAR is a leading provider of aviation services to commercial airlines and governments worldwide. At its Indianapolis MRO facility, it performs heavy maintenance with a focus on the Boeing 737.     

Kelly Sauer, Vice President of Quality AAR Aircraft Services Indianapolis

Kelly Sauer, AAR Corp’s Vice President of Quality stated: The DELTA H dual chamber furnace meets our needs on an effective, efficient and complaint heat treatment solution.   

The DELTA H DCAHT furnace features dual chambers operable to 1200°F and 500°F with precision control and temperature uniformity, and a roll-away stainless-steel quench tank. The system qualifies as Class 2 (+/-10°F) per AMS2750E and includes all controls, data acquisition technology, and spares parts package to be in full compliance with all aerospace pyrometry standards and National Aerospace and Defense Contractors Accreditation Program (Nadcap).  

Ellen Conway Merrill
Vice President

Ellen Conway Merrill, DELTA H Vice President, states “As the largest independent MRO in North America and one of the top five MRO providers in the world, it’s truly humbling to have earned AAR’s trust for their in-house heat-treating capabilities. The commissioning service at AAR Indianapolis included full qualification testing as well as training certificates for operators and QC/QA. The DELTA H DCAHTfurnace system enabled AAR to quickly qualify for not only aluminum but also aging of PH stainless steel and titanium.”


DELTA H manufactures heat treating equipment designed exclusively for serving the uncompromising standards of the aerospace & defense industry with guaranteed compliance to the strict and demanding requirements of AMS2750E and Nadcap accreditation.  DELTA H is proud to serve leading aircraft OEMs, aircraft MRO facilities worldwide, aircraft parts suppliers and the Armed Forces.  

About AAR:
AAR is a global aerospace and defense aftermarket solutions company that employs more than 6,000 people in over 20 countries. Headquartered in the Chicago area, AAR supports commercial and government customers through two operating segments: Aviation Services and Expeditionary Services. AAR’s Aviation Services include Parts Supply; OEM Solutions; Integrated Solutions; and Maintenance, Repair and Overhaul (MRO) Services. AAR’s Expeditionary Services include Mobility Systems and Composite Manufacturing operations. Additional information can be found at www.aarcorp.com.

Media contact:
Daniela Pietsch