Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1790 Register H-50 153696 used by Air America. Aircraft history and location Aircraft History 153696 Air America Sikorsky UH-34D ordered by USN under MDAP as 153696 to Air America lost Jul 17, 1969, Laos. For H-50 see also 412ep 36511 S-55C 55-1059 H-50 Air America 1967-03-2929mar67 Send Updates Use APP to upload photo @ (optional) When Now? / / Send