Helicopter Sikorsky H-37A Mojave Serial 56-010 Register N50119 54-994 used by US Army Aviation Army. Built 1956. Aircraft history and location Aircraft History 54-994 US Army Aviation 1956-07-31Sikorsky S-56, c/n 56-010, ff:? del US ARMY as H-37A, 54-994, 31Jul56 redesig CH-37A, Oct 62 conv CH-37B, unk wfu & soc unk. N50119 - ex 54-994, DM XK028 Send Updates Use APP to upload photo @ (optional) When Now? / / Send