Tactical Air Support Inc., Jacksonville, Florida, is awarded a $13,824,000 cost-plus-fixed-fee modification (P00002) to a previously awarded firm-fixed-price, cost reimbursable, indefinite-delivery/indefinite-quantity contract (N0042122D0095). This modification adds scope and increases the ceiling for the procurement of spare kits, components, consumables, as well as provides software sustainment support for F-5N and F-5F Tiger II aircraft in the F-5N+/F+ block upgrade configuration. Work will be performed in Jacksonville, Florida (32%); Emen, Switzerland (16%); Carlsbad, California (8%); Clarksburg, Maryland (7%); Grand Rapids, Michigan (6%); Olathe, Kansas (5%); Woodland Hills, California (5%); Stead, Nevada (5%); Salt Lake City, Utah (3%); Waco, Texas (2%); Minneapolis, Minnesota (2%); Nashville, Tennessee (1%); Franklin, North Carolina (1%); Warner Robbins, Georgia (1%); Camarillo, California (1%); Jupiter, Florida (1%); Avenel, New Jersey (1%); Fairborn, Ohio (1%); Deerfield, Illinois (1%); and Auburn, Alabama (1%), and is expected to be completed in June 2027. No funds will be obligated at the time of award; funds will be obligated on individual orders as they are issued. The Naval Air Warfare aviation Division, Patuxent River, Maryland, is the contracting activity.