Northrup Grumman Systems Corp., Melbourne, Florida, is awarded a $13,594,185 cost-plus-fixed-fee order (N0001923F0571) against a previously issued basic ordering agreement (N0001920G0005). This order provides non-recurring engineering in support of an engineering change proposal for the replacement of obsolete parts within the position tracking system for the E-2D Advanced Hawkeye. Work will be performed in El Segundo, California (69%); and Melbourne, Florida (31%), and is expected to be completed in November 2025. Fiscal 2021 aircraft procurement (Navy) funds in the amount of $13,594,185 will be obligated at time of award, all of which will expire at the end of the fiscal year. Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.