On 30 June 1956, United Airlines Flight 718 and Trans World Airlines Flight 2 collide in mid-air over the Grand Canyon in Arizona, killing all 128 people on both aircraft. On 26 September 1997, Garuda Indonesia Flight 152 crashes into mountainous woodlands while trying to land at Polonia International Airport in Medan, North Sumatra, in low visibility. The investigation concluded that everyone on board suffered hypoxia due to an uncontrolled decompression, but the cause remains undetermined. However, all 165 people on board survive. However, it collides with a gas station and explodes, killing 63 people on board and nine on the ground. This special looked at how pilots managed to fly after system failures. All 3 crew members on board survive. On 26 April 1994, China Airlines Flight 140 pitches upwards, enters an aerodynamic stall at low altitude and crashes approximately 340 feet east-northeast of the centreline of the runway while on final approach to Nagoya Airport in Nagoya, Japan. This special looked at accidents caused by seemingly minor defects or errors. The crash was attributed to the uncommanded deployment of a faulty thrust reverser on the right engine, which was aggravated by the co-pilot's forceful inputs on the right engine's throttle. Clerks in Mojave had greatly underestimated the train's weight, and it had been assembled without enough locomotives to provide adequate braking. The top Italian criminal court eventually ruled on 23 January 2013 that a missile strike brought down the aircraft,[6] but controversy remains; some experts dispute this conclusion, arguing that an on-board bomb in the rear toilet was the cause. This special looked at disasters caused by improperly secured or distributed cargo. All 43 people on board are killed. The aircraft rolls to the right and crashes into an apartment complex, killing all 4 on board and 39 on the ground. On 28 November 2016, LaMia Flight 2933, carrying the Brazilian Chapecoense football squad, runs out of fuel and crashes into the side of a mountain after entering a holding pattern to land at José María Córdova International Airport in Rionegro, Colombia. The investigation found that the pilots had suffered spatial disorientation. The pilots divert the aircraft to a successful emergency landing at Anchorage, Alaska, by using engine thrust for control. On 6 August 1997, during final approach for a night landing in Guam, Korean Air Flight 801 crashes into a hill while attempting a missed approach, killing 228 people. The cause of the crash was the pilot descending the aircraft below the minimum safe altitude for the approach.[4]. The fire was caused by faulty wiring in the on-board first-class and business-class entertainment systems. Only one air traffic controller was on duty (covering two boards) for that block of airspace at the time of the collision—his co-worker was on his coffee break. On 31 August 1999, LAPA Flight 3142 overruns the runway and crashes while taking off from Aeroparque Jorge Newbery in Buenos Aires, Argentina, killing 63 of the 100 people on board and 2 on the ground. The situation was aggravated by the aircraft being repeatedly buffeted by jet blast from larger aircraft while parked, stressing the cables further. The flight later lands safely at Honolulu without any more loss of life. This special looked at disasters caused by fires, either on the ground or in the air. Investigators determined that the aircraft took off with inoperative navigation equipment due to the pilots' failure to do their pre-flight checklist. More than a week later, an underground gasoline pipeline, damaged by earth-moving equipment during the post-crash clean-up, ruptures and sparks a fire that kills another two people. On 25 May 1979, the number-one engine on American Airlines Flight 191 detaches moments after taking off from Chicago O'Hare International Airport. On 9 May 2012, an aircraft on a demonstration tour crashes into Mount Salak in the province of West Java. On 22 December 1999, Korean Air Cargo Flight 8509, on a flight from London Stansted Airport to Milan, Italy, crashes into a field at night about 55 seconds after taking off, killing all four crew members on board. On 17 July 1996, Trans World Airlines (TWA) Flight 800 explodes in mid-air, breaks up during flight and crashes into the Atlantic Ocean while en route from John F. Kennedy International Airport to Paris-Charles de Gaulle Airport. On 4 November 2008, an official Mexican Interior Ministry Learjet 45 crashes in rush-hour traffic in central Mexico City. On 10 June 1990, a cockpit window on British Airways Flight 5390 blows out, partially ejecting and injuring the captain through the hole. The investigation determined that when the pilots retracted the flaps and slats during the delay, they forgot to re-extend them afterwards. This special looked at disasters involving high-profile passengers. Several critical errors made by the flight crew might have been the result of their fatigue. The Legacy manages to make a safe landing at an airbase, but the Gol jet crashes with no survivors. This special looked at the role of air traffic controllers in the airline industry and examines the Next Generation Air Transportation System, a new technology meant to eliminate mid-air collisions by reducing overall dependence on radar and radio, as well as delegating some of the air traffic controllers' tasks to computers on board each aircraft.