Construction Helicopters, Inc., Howell, Mich., is being awarded a $29,254,456 option year modification for rotary wing aircraft, personnel, equipment, tools, material, maintenance, and supervision necessary to perform passenger and cargo air transportation services.  Work will be performed in Afghanistan, and the option will start Nov. 1, 2011, to be completed by Oct. 31, 2012.  This contract was a competitive acquisition.  U.S. Transportation Command, Directorate of Acquisition, Scott Air Force Base, Ill., is the contracting activity (HTC711-11-D-R022).