Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1798 Register 3704 H-58 153704 used by Air America. Aircraft history and location Aircraft History 153704 Air America Sikorsky UH-34D ordered by USN under MDAP as 153704 to Air America H-58 Air America 1jun67 For 3704 see also ah-64d EG001 ah-64a PV829 3704 - RLAF Send Updates Use APP to upload photo @ (optional) When Now? / / Send