Helicopter Sikorsky UH-60M Black Hawk Serial Register 13-20643 used by US Army Aviation Army. Aircraft history and location Aircraft History 13-20643 US Army Aviation 2017-02Co C, 2-147th AVN, IA ARNG 2023-04-25 GC20643 Johnston, Iowa2024-01-10 Johnston, Iowa2024-03-09 Johnston, Iowa2024-04-10 GC20643 Ames, Iowa2024-04-25 GC20643 Ames, IowaCall sign for this aircraft: GC20643 Send Updates Use APP to upload photo @ (optional) When Now? / / Send