On October 21, 1978, a pilot named Frederick Valentich was flying a Cessna 182L light aircraft from Moorabbin, Australia, to Kings Island. At 7:06 pm, he radioed Melbourne Flight Service to report an unidentified aircraft flying roughly 1,000 feet above him. He reported four landing lights visible above him that were moving erratically.
His last words were, "It isn't an aircraft" - interrupted by a strange metallic sound.
Valentich was never seen again.