2 Japanese navy SH-60K helicopters collided during nighttime training near Torishima island, killing all 8 on board, due to inadequate crew instructions and lack of communication.

A Japanese navy report revealed that the fatal crash of two SH-60K reconnaissance helicopters in April was caused by inadequate instructions to the crew, leading to a lack of communication and insufficient lookout. The helicopters collided during nighttime anti-submarine training near Torishima island, resulting in the death of all eight people on board. The absence of collision avoidance maneuvers indicated that both helicopters miscalculated the distance between them.