On 12 August 1985 , seven years after the tailstrike incident , JA8119 was operating Japan Airlines Flight 123 on the same route , Haneda to Itami . On ascent out of Haneda , twelve minutes into the flight , the tailstrike repair failed catastrophically . The rear bulkhead burst open , the vertical stabilizer was torn off and all hydraulic systems were damaged , rendering the aircraft uncontrollable . The aircraft crashed into Mount Takamagahara near Ueno , Gunma Prefecture , killing 520 out of the 524 people on board . This was the deadliest single aircraft accident in history
Japan Airlines Flight 123
Japan Airlines Flight 123
Japan Airlines Flight 115