AVIAN-Precise Co.,* Lexington Park, Maryland, is being awarded a $57,399,109 cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity contract for approximately 739,200 hours sustaining engineering, training and tools in support of the Naval Air Systems Command’s Systems Engineering Department (AIR-4.1).  Services to be provided include direct systems sustainment engineering support throughout the full life cycle of a weapon system from concept development to disposal to be applied to all naval aircraft (tactical, vertical lift, maritime, unmanned air vehicle, targets and advanced weapons), foreign military sales and support systems.  Work will be performed in Patuxent River, Maryland (91 percent); and Jacksonville, Florida (9 percent), and is expected to be completed in April 2023.  No funds are being obligated at time of award; funds will be obligated on individual task orders as they are issued.  This contract was competitively procured via an electronic request for proposals as a 100 percent small business set-aside; three offers were received.  The Naval Air Warfare Center Aircraft Division, Patuxent River, Maryland, is the activity (N00421-18-D-0016).