Bell Helicopter Textron Inc., Fort Worth, Texas, is being awarded a $391,426,326 firm-fixed-price modification to definitize a previously awarded advance acquisition undefinitized contract action (N00019-11-C-0023) to provide lot 9 long lead parts and components required for the manufacture of 15 UH-1Y new aircraft; three AH-1Z remanufactured aircraft; and seven AH-1Z new aircraft.  Work will be performed in Fort Worth, Texas (60 percent) and Amarillo, Texas (40 percent), and is expected to be completed in July 2015.  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.