Helicopter Sikorsky H-37A Mojave Serial 56-006 Register 54-993 used by US Army Aviation Army. Built 1956. Aircraft history and location Aircraft History 54-993 US Army Aviation 1956-05-31Sikorsky S-56, c/n 56-006, ff:? del US Army as H-37A, 54-993, 31May56 wfu & soc unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
