Helicopter Aerospatiale SA315B Lama Serial 2505 Register N316DJ HB-ZDG D-HFWZ N49537 used by Heli Rezia AG ,US Department of Interior. Built 1977. Aircraft history and location
US Dept of the Interior, United States Geological Survey (USGS)
1977-1981, she flew geophysical surveys for the US govt. We took out the back seats and mounted a rack of data acquisition electronics for radiometric and magnetic surveys across the US