Worked on the left wing root fairing. The right one went very well and I was confident on making the left one. I laid out the material and scribed a cut line. I cut the material and placed it onto the wing. I should have measured twice. The cut line was a perfect match to the aircraft side but it was 3/8" too narrow. I am now waiting on a replacement piece of 4" x 69" x 0.025" piece of aluminum. I really wanted to finish the fairings before the weekend.