It has been 13 days since the accident in which a Ground Self-Defense Force helicopter disappeared near Miyako Island in Okinawa Prefecture. Searches are continuing, but no strong clues have been found that will lead to the discovery of the members.
Former army general Koichi Isobe, a former helicopter pilot, talks about how the accident happened and the factors that have been pointed out so far. In some past aircraft accidents, the cause is that the pilot fell into a state called "spatial disorientation," he says.