The Boeing Co., St. Louis, Missouri, is awarded a $13,972,948 modification (P00009) to a cost-plus-fixed-fee order (N0001917F0005) against a previously issued basic ordering agreement (N0001916G0001). This modification exercises an option to procure 69 Primary Bleed Air Pressure Regulator (PBAR) and Shut Off Valve Delta Kit modifications; and 384 PBAR new valve kits in support of the environmental control system PBAR and shut off valve improvement for F/A-18 series aircraft. Work will be performed in Windsor, Connecticut (80%); El Segundo, California (12%); and St. Louis, Missouri (8%), and is expected to be completed in September 2024. Fiscal 2021 aircraft procurement (Navy) funds in the amount of $13,972,948 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.