AAR Supply Chain Inc., Wood Dale, Illinois, has been awarded an estimated $39,806,584 firm-fixed-price, requirements contract for KC-135 auxiliary power units and F-16C and F-16D jet fuel starters. This was a sole-source acquisition using justification 10 U.S. Code 2304 (c)(1), as stated in Federal Acquisition Regulation 6.302-1. This is a two-year base contract with one two-year option period. Location of performance is Georgia, with a Sept. 15, 2025, performance completion date. Using military service is Air Force. Type of appropriation is fiscal 2023 through 2025 Air Force working capital funds. The contracting activity is the Defense Logistics Agency Aviation, Hill Air Force Base, Utah (SPRHA1-23-D-0002).