L-3 Communications Vertex Aerospace LLC, Madison, Mississippi, is being awarded a $25,493,729 modification to a previously awarded indefinite-delivery requirements contract (N00019-13-D-0007) for logistics and depot level services for TH-57 aircraft in support of the Naval Air Training Command’s Undergraduate Helicopter Pilot Training Program. This modification provides for increased aircraft availability to respond to pilot training requirements. Work will be performed at the Naval Air Station Whiting Field, Milton, Florida, and is expected to be completed in May 2016. No funds are being obligated at time of award. Funds will be obligated against individual delivery orders as they are issued. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.