flygcforum.com ✈ JAPAN AIRLINES FLIGHT 123 ✈ Explosive Decompression ✈ It is the deadliest single-aircraft accident in history, the deadliest aviation accident to occur on Japanese soil, and the second-deadliest 747 air disaster and deadliest accident behind the 1977 Tenerife airport disaster. A proper repair job would have avoided this accident!
1985 ♦ August 12 – Japan Airlines Flight 123, a Boeing 747, crashes into Mount Osutaka after catastrophic failure of the pressure hull severs all hydraulic lines and renders the aircraft uncontrollable, killing 520 of 524 people on board. To date, it is the worst single-aircraft disaster in history.
flygcforum.com - On Monday, August 12, 1985, the Boeing 747-146SR that made this route, registered JA8119, suffered mechanical failures 12 minutes into the flight and 32 minutes later crashed into two ridges of Mount Takamagahara in Ueno, Gunma Prefecture, 100 kilometers (62 mi) from Tokyo.