Helicopter Sikorsky S-55 Serial 55-939 Register N750A used by CalCo (California Company). Built 1956. Aircraft history and location Aircraft History For N750A see also 2008 s-76c 760750 N750A CalCo 1956-03-27Sikorsky S-55 c/n 55-939, ff:? del CalCo as N750A, 27Mar56 status unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
