Helicopter Sikorsky S-55 Serial 55-773 Register N736A used by Los Angeles Airways LAA. Built 1954. Aircraft history and location Aircraft History N736A Los Angeles Airways 1954-09-03Sikorsky S-55 c/n 55-773, ff:? del Los Angeles Airways as N736A, 03Sep54. Send Updates Use APP to upload photo @ (optional) When Now? / / Send