What happened
During a flight near Kagoshima, an engine malfunction occurred, leading to a loss of power. Following the mechanical failure, the crew attempted to feather the propeller to reduce drag; however, this procedure could not be completed successfully.
Due to the inability to manage the propeller state and the subsequent flight conditions, the crew made the decision to bail out of the aircraft. After the crew exited, the plane descended rapidly and struck the ground in the Kagoshima region.
Despite the impact of the aircraft, all five crew members survived the incident without injuries.
Findings
Investigations into the event determined that the primary factor was an engine failure during the flight phase.