Helicopter Sikorsky UH-60A Black Hawk Serial 70-574 Register 82-23751 used by US Army Aviation Army. Aircraft history and location Aircraft History 82-23751 US Army Aviation 1994-09-16 A EHSBUS Army 16 45th MedCo. 45 MedCo 1998 45th MedCo. 2007 C/1-214th AVN. 45 MedCo Send Updates Use APP to upload photo @ (optional) When Now? / / Send