Helicopter Sikorsky H-37A Mojave Serial 56-142 Register 58-997 used by US Army Aviation Army. Built 1960. Aircraft history and location Aircraft History 58-997 US Army Aviation 1960-01-08Sikorsky S-56, c/n 56-142, ff:? del US ARMY as H-37A, 58-997, 08Jan60 redesig CH-37A, Oct 62 conv CH-37B, unk wfu & soc unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
