Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1793 Register 3699 H-53 153699 used by Air America. Aircraft history and location Aircraft History 153699 Air America Sikorsky UH-34D ordered by USN under MDAP as 153699 to Air America. For H-53 see also S-55C 55-1078 w/o 1987 2009 412ep 36529 H-53 Air America 1967-05-2020may67 3699 - RLAF Send Updates Use APP to upload photo @ (optional) When Now? / / Send