Helicopter Sikorsky UH-60A Black Hawk Serial 70-691 Register 83-23866 used by US Army Aviation Army. Aircraft history and location Aircraft History 83-23866 US Army Aviation 1989-07-06US Army B Co,2/2 AVN w/o 06jul89 crashed after hit power lines during night training 8 m East of Seoul, South Korea. 2 injuries Send Updates Use APP to upload photo @ (optional) When Now? / / Send