Here are ten major international airline disasters that have taken place in the past five decades.
Flying Tiger Line Flight 739
On March 16, 1962, a Lockheed Super Constellation chartered by the U.S. military disappeared over the Pacific Ocean. The plane was carrying 96 military passengers and 11 crew members from Travis Air Force Base in California and was headed for Saigon, Vietnam. The disappearance of the Flying Tiger Line plane led to one of the largest search operations ever mounted, involving 48 aircraft and eight surface vessels and covering an area of more than 200,000 square miles. Nothing was ever found. The crew of a Liberian tanker reported sighting a "bright light strong enough to light" a ship's deck about 500 miles west of Guam, which the U.S. officials said "may have been the missing aircraft exploding in flight."
Air India 855
Shortly after Air India's Boeing 747-237B made a right turn over the Arabian Sea after leaving Bombay on Jan. 1, 1978, it began rolling to the left and never regained control. The plane crashed off the coast of Bandra, killing all 213 people on board, making it one of the biggest air disasters in Indian aviation history. An investigation into the crash concluded that the cause of the accident was "irrational control inputs by the captain" that prevented the crew from regaining control of the plane.
Japan Airlines 123
Twelve minutes after taking off from Tokyo on Aug. 12, 1985, and headed for Osaka, the Japan Airlines' Boeing 747SR experienced unusual vibration and control problems. The plane descended quickly from 23,900 feet to 6,000 feet, and 32 minutes later, crashed into Osutaka Ridge. The explosion led to the death of 520 passengers on board, making it the deadliest single-aircraft disaster in the world. Only four passengers survived.
A Boeing 747-100 operated by Trans World Airlines exploded and crashed into the Atlantic Ocean on July 17, 1996. The plane was carrying 230 people from New York to Rome, all of whom were killed in the crash. A four-year investigation by NTSB concluded that the crash occurred following an explosion in the fuel tank, which was most likely caused by a short circuit. However, conspiracy theorists continued to speculate that TWA 800 was brought down by a missile from a U.S. military aircraft and that the government was covering it up.
Egypt Air 990
On Oct. 31, 1999, Egypt Air's Boeing 767-300ER plane, flying from Los Angeles to Cairo via New York City, crashed into the Atlantic Ocean about 60 miles south of Nantucket, Mass., killing 217 passengers. The crash of the plane became controversial after two differing reports on the incident were filed — The National Transportation Safety Board (NTSB) concluded that the crash was caused deliberately by one of the pilots, while the Egyptian Civil Aviation Authority denied the U.S. report and concluded that the crash was due to mechanical failures.
Flash Airlines 604
A Boeing 737-300 operated by the Egyptian Flash Airlines crashed into the Red Sea shortly after taking off from Sharm el-Sheikh on Jan. 3, 2004. The plane was carrying 135 passengers, of which the majority were French tourists. Investigations into the crash reported that no conclusive evidence could be found to determine the real cause. The crash is known to be the deadliest in Egypt airline industry.
Pulkovo Airlines 612
On Aug. 22, 2006, a Tupolev Tu-154 flying from the Russian city of Anapa to St. Petersburg sent three SOS signals before disappearing from radar contact and then crashing in eastern Ukraine, killing all 170 people on board. Russia's Interstate Aviation Authority, also known as MAK, said in an investigation that the plane lost its control when the pilots made an attempt to avoid areas of turbulence and thunderstorms, and then started dropping sharply before crashing in a village.
Gol Airlines 1907
A Boeing 737-8EH operated by Brazilian Gol Transportes Aéreos broke up during flight after it collided with a business jet on Sept. 29, 2006, killing all 154 people traveling from Manaus to Rio de Janeiro. In its investigation, the NTSB pointed its finger at Brazilian air traffic controllers who essentially directed the two planes to "operate in opposite directions on the same airway at the same altitude." However, a report released by Brazil's aviation safety organization said that the American pilots flying the private jet were partly to blame for "apparently turning off cockpit equipment meant to alert other planes to its presence."
Air France 447
The last plane to mysteriously disappear before the Malaysia Airlines flight was and Airbus A330 operated by Air France, which was flying from Rio de Janeiro to Paris on June 1, 2009. Major parts of the wreckage of the plane were only found five days later in the Atlantic Ocean, indicating that the plane had crashed and broken apart upon impact, killing all 228 people on board. A French report published almost three years later concluded that the crash was caused by a combination of human and technical errors. The investigation of Air France 447 took a considerably long time because the plane's black boxes were not recovered from the ocean until May 2011.
Dana Air Flight 992
On June 3, 2012, a McDonnell Douglas MD-83 aircraft operated by Nigeria's Dana Air crashed into a building in Lagos, killing 153 passengers on board and 10 people on the ground. In a report, Nigeria's Accident Investigation Bureau said that the crash was caused by a forced landing made after dual engine failures on the aircraft. Days after the crash, the country's civil aviation authority grounded all of Dana Air's planes and suspended its license.