Helicopter Sikorsky HO4S-3 Serial 55-579 Register N68397 138514 used by US Navy USN. Built 1953. Aircraft history and location Aircraft History 138514 US Navy 1953-11-10Sikorsky S-55 c/n 55-579, ff:? del USN as HO4S-3, 138514, 10Nov53. N68397 - 2015-01 Jan15 stored/derelict GABS (?) white/yellow c/s with N91AS Send Updates Use APP to upload photo @ (optional) When Now? / / Send
