Helicopter Bell OH-58A Kiowa Serial 41994 Register N51694 72-21328 used by State of Tennessee ,US Army Aviation Army. Aircraft history and location Aircraft History 72-21328 US Army Aviation US Army N51694 State of Tennessee Warren County Sheriffs Department at Mc Minnville, TN May97-Nov13 State of Tennessee 2019-05Williamson County Sheriff Office at Franklin, TN from May19 Send Updates Use APP to upload photo @ (optional) When Now? / / Send