English: Illustration of the third UFO observed by Captain Terauchi and his crew over Alaska on 17 November 1986, sometimes described as the "mothership", shown here as later described, on the port side or behind the Boeing 747 cargo freighter of Japan Air Lines, as the lights of Fairbanks were beginning to illuminate it. The "mothership" was mainly distinguishable by the presence of two bands of pale white light on its far left and right sides respectively.