 A report published in August 2007 by the Operational Test and Evaluation Directorate (DOT&E) noted that although the Lakota "...is effective in the performance of light utility missions," it was prone to overheating during operations in the desert conditions of Fort Irwin when not equipped with air conditioning systems.In response, vents were added in the doors to increase cabin air flow; air conditioning has been installed on some Medical and VIP versions, as well as added air conditioning units for crew comfort.The Joint Readiness Training Center (JRTC) located at Fort Polk, Louisiana received their first aircraft on 7 September 2007.