Helicopter Bell UH-1D Iroquois Serial 8615 Register 66-16421 used by US Army Aviation Army. Aircraft history and location Aircraft History 66-16421 US Army Aviation 1996-03-17US Army conv UH-1H 17mar96 126th Med Co, California Army National Guard in medevac mrks at Sacramento Mather AFB (KMHR), CA Send Updates Use APP to upload photo @ (optional) When Now? / / Send