Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1779 Register 153557 used by Air America. Aircraft history and location Aircraft History 153557 Air America Sikorsky UH-34D ordered by USN under MDAP as 153557 to Air America lost Sep 14, 1967, Laos. Send Updates Use APP to upload photo @ (optional) When Now? / / Send