Northrop Grumman Systems Corp., Sierra Vista, Arizona, has been awarded a $16,372,416 modification (P00023) to previously awarded contract FA8690-21-C-1001 for Global Hawk (RQ-4) aircraft sustainment. The contract modification is for the purchase of replenishment spares for operational use and to support depot repair, as well as two engineering change proposals to support diminishing manufacturing sources being produced under the basic contract. The modification brings the total cumulative face value of the contract to $250,409,843. Work will be performed in the Republic of Korea, and Sierra Vista, Arizona. This modification involves Foreign Military Sales (FMS) to the Republic of Korea. The work is expected to be completed by Feb. 24, 2028. FMS funds in the amount of $16,372,416 are being obligated at the time of award. Air Force Life Cycle Management Center, Wright-Patterson Air Force Base, Ohio, is the contracting activity.