Falcon3D A340-600 SAS (Polygon mesh 3D model) is available on CGTrader for $85. Original author: Falcon3D. Specs: 56732 polys, 33881 verts.
STL (Stereolithography, filesize: 1.79 MB), OBJ (OBJ, filesize: 878 KB), MAX (Autodesk 3ds Max, filesize: 296 KB), LWO (Lightwave, filesize: 681 KB), DXF (DXF, filesize: 1.04 MB), 3DM (Rhinoceros 3D, filesize: 769 KB), OTHER (Other, filesize: 1.42 MB), TEXTURES (Textures, filesize: 1.38 MB), 3DS (3D Studio, filesize: 407 KB), DWG (AutoCAD, filesize: 1000 KB)