Helicopter Sikorsky YH-19 Serial 55-003 Register N68634 49-2014 used by US Air Force USAF. Built 1950. Aircraft history and location Aircraft History 49-2014 US Air Force 1950-08-24Sikorsky S-55, c/n 55-003, ff:? del USAF as YH-19, 49-2014, 24Aug50, status unk. N68634 - ex 49-2014 Send Updates Use APP to upload photo @ (optional) When Now? / / Send