That pictures been here before, and I seem to remember some people suggesting its a fake. I think it is, because firstly you can see blue edges around the smoke, even right on the ground, where its should be green or brown. Someone hasn't cut it out properly.
And the shadows don't add up. The outline on the ground suggests the sun is at about 1 o'clock in the picture, and slightly ahead of the plane, but the shadow for the left ( your left ) intake suggests the sun is somewhere else.