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Plane Accidents

JAL flight123

Monday Aug 12, 1985
Mount Osutaka, Ueno, Gunma Perfecture, Japan

The crashes of Japan Airlines Flight 123 on August 12, 1985, is the single-aircraft disaster with the highest number of fatalities: 520 people died on board a Boeing 747. The aircraft suffered an explosive decompression from an incorrectly repaired aft pressure bulkhead, which failed in mid-flight, destroying most of its vertical stabilizer and severing all of the hydraulic lines, making the 747 virtually uncontrollable. Pilots were able to keep the plane flying for 32 minutes after the mechanical failure before crashing into a mountain. All 15 crew members and 505 of the 509 passengers on board died.


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