The Boeing Co., St. Louis, Missouri, is awarded a $319,267,437 firm-fixed-price, cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity contract to provide F/A-18 automated maintenance environment system sustainment to include sustainment engineering, engineering investigations, system safety analysis, structural appraisal of fatigue effects support, technical integration support, trade studies, and aerodynamic simulation and modeling support, as well as maintenance planning product data support, configuration management support, and peculiar support equipment (PSE) management to include analysis of aircraft changes for PSE impact. Additionally, this contract provides failure reporting and corrective action system maintenance, software upgrades and training to support fleet maintenance activities; ensuring interactive electronic technical manuals are up-to-date and released to the fleet; and logistics support to provide on-site assistance to operators and organizational/intermediate level maintainers in support of maintaining a network of Hornet Support Centers required for the Navy, Marine Corps, and Foreign Military Sales customers’ F/A-18 and EA-18G aircraft. Work will be performed in St. Louis, Missouri (76%); El Segundo, California (18%); Vandalia, Ohio (2%); Oceana, Virginia (1%); Miramar, California (1%); and various locations within the continental U.S. (2%), and is expected to be completed in December 2028. No funds will be obligated at the time of award; funds will be obligated on individual orders as they are issued. This contract was not competitively procured pursuant to Federal Acquisition Regulation 6.302-1. Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity (N0001924D0128).