Henra,
Remember that you are looking at telephoto shots of High Arctic tundra, where the absence of trees leads to major problems of scale. Distances can be very deceptive.
In the photos posted by Lost in Saigon, the Canadian military Griffon helicopter in photo #1 and the red Canadian Coast Guard Bo105 chopper in photo #4 do provide some scale but they are sitting well in front of the wreckage trail.
That said, the debris does seem to extend to the right out of photo #4 but I doubt it stretches very far and it would hardly include intact segments of the fuselage - and certainly not "upstream" from the tail.
Of course it is a miracle that there were three survivors, one of them a young woman who actually walked (probably more likely hobbled as she had a broken leg) away from the wreckage and found another survivor, a young Inuit girl, sitting on a rock.
Rockhound