This was the first disaster involving the destruction of a NASA space shuttle. A faulty O-ring was the cause of the accident. On April 26, 1986, the Chernobyl disaster, a large-scale nuclear meltdown in the Ukrainian SSR, Soviet Union, spread a large amount of radioactive material across Europe, killing 47 people, dooming countless others to future radiation-related cancer, and causing the displacement of 300,000 people. On June 14, 1986, Fantasyland's Mindbender inside West Edmonton Mall, derails and kills 3 people, injuring one, and slams into a concrete post. On August 31, 1986, Aeroméxico Flight 498 crashed after colliding with a private Piper Cherokee over Cerritos, California, killing everyone on both airplanes and several others on the ground. On the same day, the Soviet passenger ship Admiral Nakhimov sank after colliding with the bulk carrier Pyotr Vasev in the Black Sea, killing 423 people. On September 27, 1986 Cliff Burton died in a bus crash while on tour with his band, Metallica On May 9, 1987, an uncontained engine failure on LOT Flight 5055 caused an in-flight fire on board the airliner, which subsequently crashed, killing all 183 passengers and crew. On August 16, 1987, Northwest Airlines Flight 255 crashed almost immediately after takeoff from Detroit Wayne Airport in Michigan, killing 156 people. On November 28, 1987, a fire broke out on South African Airways Flight 295, eventually causing the aircraft to crash into the Indian Ocean. All 159 aboard were killed. On December 7, 1987, 43 people were killed when an irate former USAir employee went on a rampage aboard PSA Flight 1771. On December 20, 1987, the Philippine passenger ferry MV Doña Paz burned and sank after colliding with the oil tanker MT Vector. With an estimated death toll of over 4,000, this was and remains the world's deadliest peacetime maritime disaster. On July 3, 1988, Iran Air Flight 655 was shot down by the U.S. missile cruiser USS Vincennes over the Strait of Hormuz, killing all 290 people on the plane. The event is one of the most controversial aviation occurrences of all time, with the true cause disputed between the Americans and the Iranians. On December 21, 1988, an American passenger 747 airliner en route from Frankfurt to Detroit (via London and New York) Pan Am Flight 103 was destroyed by a bomb while it was flying over Lockerbie, Scotland, killing the 259 passengers and crew members