Helicopter Sikorsky H-34A Choctaw Serial 58-401 Register SKY.401 used by Armée de l'Air (French Air Force). Built 1957. Aircraft history and location Aircraft History SKY.401 Armée de l'Air 1957-01-08Sikorsky H-34A c/n 58-401 del France Armee de lAir as SKY.401, 08Jan57 coded ER w/o accident 01Aug63. Send Updates Use APP to upload photo @ (optional) When Now? / / Send