Helicopter Sikorsky S-55 Serial 55-708 Register CF-HVR N424A used by Mohawk Airlines. Built 1954. Aircraft history and location Aircraft History N424A Mohawk Airlines 1954-04-30Sikorsky S-55 c/n 55-708, ff:? del Mohawk as N424A, 30Apr54. CF-HVR - Send Updates Use APP to upload photo @ (optional) When Now? / / Send