Helicopter Sikorsky H-19D Chickasaw Serial 55-1209 Register C-GWWH 57-1640 used by US Army Aviation Army. Built 1958. Aircraft history and location Aircraft History 57-1640 US Army Aviation 1958-10-08Sikorsky S-55 c/n 55-1209, ff:? del US Army as H-19D, 57-1640, 08Oct58. C-GWWH - ex 57-1640, N49890 1984 at St Albert Aerodrome, Alberta, Canada Send Updates Use APP to upload photo @ (optional) When Now? / / Send