Tim -- Yes, in my comment about the visibility of the cable/wire, I obviously goofed and had my references to the two images reversed. I meant to say, "The cable/wire in the 2012 image is very distinct; the cable/wire in the 2010 image is not very distinct at all." Thank you for pointing out this mistake in my post.
Your additional comments, after pointing out my mistake above, still don't provide convincing answers to my points. Your hypothesis regarding the plankton "snow" is very creative, but you are grossly over-stating the deposition rate of the bottom layer created by this "snow". It is nowhere near large enough to cover up rocks in just two years. If you extrapolate your suggested deposition rate over the 70+ years the Electra pieces would have been sitting there, how could you be seeing anything of the Electra? The parts would have been completely buried by this plankton "snow" layer.
Regarding the "antenna cable" in the 2010 image, you have now simply changed your label of the "antenna cable" to another thin black line visible in the image. You say this new "cable" disappears under the coral rubble near the top of the image; that's why the thin black line abruptly ends near the top of the image. Apparently all the cable running toward the bottom of the image was also buried in the 2010 image, as we only see a short length of the thin black line in this image.
Then in the 2012 image we see the cable/wire running completey across the image from left to right. Almost this entire length is completely visible in 2012. Explain to me how this could have happened. Some event (or events) happened between 2010 and 2012 to jerk this long section of the cable out from under the rock and coral debris, making the cable completely visible in the 2012 image. Yet you say there was the gentle "snow" of plankton falling between 2010 and 2012 which covered up rocks which projected at least several inches upward from the ocean bottom. How are both of these situations possible? Seems to me something which would have rearranged the bottom enough to take the cable from almost completely covered in 2010 to completely uncovered in 2012 would have also disturbed this layer of plankton "snow."
In previous posts you have tried to use relative sizes of objects to support your opinions that these are pieces of Electra wreckage. Let's see how that works in comparing your 2010 and 2012 images which you claim show the same Electra wreckage in the same place.
In the 2010 image, you have labeled a straight line which you propose is the opening in the rudder for the trim tab. On my computer screen, the length of this line (roughly between your "top" and "bottom" labels for the trim tab opening) measures about 3.5 cm. Also in the 2010 image, the width (diameter) of the "antenna" cable/wire measures about 0.1 cm on my computer screen. Therefore, the ratio of length of trim tab opening to diameter of the cable is 3.5/0.1 = 35.0.
Make the same measurements in the 2012 image. The length of the trim tab opening is about 2.0 cm. The diameter of the cable, measured closest to the trim tab opening, is about 0.15 cm. (The cable diameter measures even larger than this in other parts of the 2012 image.) Therefore, the ratio of trim tab opening length to cable diameter is 2.0/0.15 = 13.3.
Therefore, relative sizes of trim tab opening and "antenna" cable diameter simply don't match between the two images you say show the same exact area of ocean bottom.
I can see other mismatches between the 2010 and 2012 images:
(1) In the 2012 image, there is a good sized rock right next to the "top" end of the trim tab opening. The rock extends upward from the ocean bottom, out of the plane of the image, toward the camera. Where is this largish rock in the 2010 image? I cerainly don't see it.
(2) In the 2010 image, the distance between the straight line defining the trim tab opening and the nearest edge of the tire feature is about equal to the length of the trim tab opening. In the 2012 image, the distance between trim tab opening and tire is larger than the length of the trim tab opening.
So, I still say the 2010 and 2012 images are not of the same piece of ocean bottom.