Engineering and Software System Solutions, San Diego, California and University of Dayton Research Institute, Dayton, Ohio have been collectively awarded a ceiling $277,000,000 indefinite-delivery/indefinite-quantity modification to previously awarded contracts for landing gear engineering services. The purpose of this modification is to increase the total contract estimate for the Atlas 3 multiple award contract with no change to the scope of the contracts. The increase will allow continued execution of work to be performed to support landing gear engineering services, which ensure mission safety, improve system life cycle costs, improve operational capability and performance, improve sustainment including maintainability and support and improve environmental safety and friendliness. Work will be performed as indicated in contract award on each individual task order and is expected to be completed July 29, 2029. No funds are being obligated at the time of award but will be obligated on each individual task order. Air Force Sustainment Center, Hill Air Force Base, Utah, is the contracting activity.