Helicopter Sikorsky H-37A Mojave Serial 56-141 Register 58-996 used by US Army Aviation Army. Built 1959. Aircraft history and location Aircraft History 58-996 US Army Aviation 1959-12-15Sikorsky S-56, c/n 56-141, ff:? del US ARMY as H-37A, 58-996, 15Dec59 redesig CH-37A, Oct 62 conv CH-37B, unk wfu & soc unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
