62 miles (100 km) South of Tokyo in marginal weather conditions, the aircraft crashed into the slope of Mount Mihara on Izu Ōshima at 8.07 am.

[2] The Martin 2-0-2 involved, registered N93043 and named Mokusei-go (もく星号, Jupiter), was built in 1947 and was leased from Northwest Airlines to Japan Air Lines at the time of the crash.

An investigation of the accident by the Japanese government aircraft accident investigation committee was hampered by the occupation authorities due to their refusal to provide a tape recording of the conversations between the ATC at Haneda Airport and Flight 301.

The committee proposed that the only evidence they had, which was that the aircraft had deviated from its original course, suggested that the cause of the accident was due to a navigational error by the pilots of flight 301.

[2] Media related to Japan Air Lines Flight 301 at Wikimedia Commons