The 190a5 has a bug where the bitmap used for the port engine cowling stops and has a 1 pixel black line even though the bitmap has a color all the way to the end of the image (1024x1024). It seems that the texture applied to the 3d model is 1 pixel off, as there seems no way to "fill" this line.
Image quality isn't the best, it's 512x512 for in-game preview. There are a couple of other lines that I have since corrected, but this line between port and starboard cowlings is the one I think is a bug.