The Boeing Co., St. Louis, Missouri, is awarded a ceiling priced $4,040,458,297 modification to convert a previously awarded advanced acquisition contract (N00019-18-C-1046) to a fixed-price-incentive-firm-target multi-year contract. The target price for this multi-year contract is $4,001,410,000. This modification provides for the full-rate production and delivery of 78 F/A-18 aircraft, specifically 61 F/A-18E and 17 F/A-18F aircraft for fiscal years 2018 through 2021. Work will be performed in El Segundo, California (61 percent); Hazelwood, Missouri (9 percent); Longueuil, Quebec, Canada (2 percent); Torrance, California (2 percent); Bloomington, Minnesota (2 percent); Ajax, Ontario, Canada (2 percent); Vandalia, Ohio (1 percent); Fort Worth, Texas (1 percent); Irvine, California (1 percent); Palm Bay, Florida (1 percent); Santa Clarita, California (1 percent); Grand Rapids, Michigan (1 percent); Greenlawn, New York (1 percent); Endicott, New York (1 percent); Marion, Virginia (1 percent); and various locations within the continental U.S. (13 percent). Work is expected to be completed in April 2024. Fiscal 2018 and 2019 aircraft procurement (Navy) funds in the amount of $1,557,334,000 will be obligated at time of award, none of which will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.