Rolls-Royce Corp., Indianapolis, Ind., was awarded a $13,879,930 firm-fixed-price contract.  The award will provide for the services in support of the upgraded single channel full authority digital engine control retrofit of OH-58D fleet.  Work will be performed in Indianapolis, with an estimated completion date of July 29, 2014.  One bid was solicited, with one bid received.  The U.S. Army Contracting Command, Redstone Arsenal, Ala., is the contracting activity (W58RGZ-11-D-0257).