Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1801 Register 4891 H-61 154891 used by Air America. Aircraft history and location Aircraft History 154891 Air America Sikorsky UH-34D ordered by USN under MDAP as 154891 to Air America. For H-61 see also uh-12e 2060 w/o 1986 sa315b 2267 w/o 1981 Bo105 3025 H-61 Air America 1967-09-2727sep67 4891 - RLAF Send Updates Use APP to upload photo @ (optional) When Now? / / Send