Captain Chelsey Sullenberger, the Flight 1549 captain who safely landed a US Airways plane into the Hudson back in January, tells CityRoom that a book about the plane's landing "'greatly overstates how much it mattered' that the plane he landed in the river, an Airbus A320, featured an automated cockpit." William Langwische's Fly by Wire credits the engineers behind A320's automation, but Sullenberger points out both engines were knocked out, "There are some situations where the automation will protect a pilot, but at the same time a highly automated airplane makes possible other types of errors, so it’s a mixed blessing. And greater knowledge is required to fly a highly automated aircraft."