Sikorsky Aircraft Corp., Stratford, Conn., is being awarded a $10,148,771 modification to a previously issued delivery order placed against basic ordering agreement (N00019-08-G-0010).  This modification provides for additional non-recurring engineering for the conversion of one UH-3H helicopter to a UH-3D Trainer Aircraft, including associated test support.  Work will be performed in Cherry Point, N.C., (80 percent) and Stratford, Conn., (20 percent) and is expected to be completed in October 2014.  Contract funds in the amount of $10,148,771 are being obligated at time of award.  Contract funds will not expire at the end of the current fiscal year.  The Naval Air Systems Command, Patuxent River, Md., is the contracting activity.