Helicopter Sikorsky UH-60L Black Hawk Serial 70-1639 Register 91-26341 used by US Army Aviation Army. Aircraft history and location Aircraft History 91-26341 US Army Aviation 1999-05-24 A PAFR 1/207th AVN 24 May 1999 1/207th AVN 1-207 AVN Send Updates Use APP to upload photo @ (optional) When Now? / / Send