Advanced Turbine Engine Co. said last week it has filed a protest with the Government Accountability Office against the Army's award to General Electric Aviation for the Improved Turbine Engine Program, intended to replace the engines in the AH-64 Apache and UH-60 Black Hawk helicopters. ATEC is a joint venture of Honeywell International Inc. and Pratt & Whitney. The ITEP award was made Feb. 1. "In our review of the evaluation, we clearly offered the best value through a combination...