Helicopter Sikorsky H-37A Mojave Serial 56-148 Register 58-1003 used by US Army Aviation Army. Built 1960. Aircraft history and location Aircraft History 58-1003 US Army Aviation 1960-04-08Sikorsky S-56, c/n 56-148, ff:? del US ARMY as H-37A, 58-1003, 08Apr60 redesig CH-37A, Oct 62 conv CH-37B, unk wfu & soc unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send