Helicopter Westland Sioux Serial wa316 Register XT157 used by Army Air Corps AAC (British Army). Built 1965. Aircraft history and location Aircraft History XT157 Army Air Corps AAC Sioux AH.1 1976 A Seria heliportC Flt at Seria, supporting 7th Gurkha Rifles. 656 Squadron - 1978-12-15Sold in Hong Kong to Autair 15Dec78 Send Updates Use APP to upload photo @ (optional) When Now? / / Send