Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1815 Register H-66 156593 used by Air America. Aircraft history and location Aircraft History 156593 Air America Sikorsky UH-34D ordered by USN under MDAP as 156593 to Air America, unk lost Jun 16, 1970, Laos. For H-66 see also sa315b 2328 w/o 1986 105cb-2 S-710 sa315b w/o 2001 H-66 Air America 1969-02feb69 Send Updates Use APP to upload photo @ (optional) When Now? / / Send