Unfortunately Matt, this photo will not make it into the database. Bad angle, it seems "hazy", bad crop.
1. Crop closer to the plane. There is nothing of interest in the sky so it doesn't lend itself to the composition of the photo unless you're conveying an alternate message, ie. the plane is very small. Besides, unless it is a really good shot, airliners.net doesn't typically accept "impression" or "artistic" shots like that.
2. Increase the contrast. This will make the photo less "hazy", of course at a slight loss of detail.
3. Increase saturation slightly, but not to the point that grain begins to appear.
4. Play around with sharpening, it might help.