Helicopter Bell TH-13T Sioux Serial 3651 Register TI-BHA XB-IMR N99631 67-15932 used by US Army Aviation Army. Aircraft history and location Aircraft History 67-15932 US Army Aviation US Army N99631 - Hagatna, Guam 1999-May03 XB-IMR - Mexico TI-BHA - 2018-09-29 A KDDH at Bennington Airfield, Vermont in poor condition. Send Updates Use APP to upload photo @ (optional) When Now? / / Send