Date & Time: Jul 30, 1971 at 1400 LT
Type of aircraft:
Scheduled Revenue Flight
Sapporo - Tokyo
Crew on board:
Pax on board:
Aircraft flight hours:
The Boeing 727 departed Sapporo-Chitose Airport on a regular schedule flight to Tokyo-Haneda, carrying a crew of 7 and 155 passengers. While cruising at 28,000 feet, the airplane collided with a Japan Air-Self Defence Force North American F-86F Sabre registered 92-7932 and carrying a crew of two. Following the collision, both aircraft went out of control, dove into the ground and crashed in a mountainous area located south of Shizukuishi. While both military pilots were able to eject and were uninjured, all 162 occupants on board the 727 were killed.
It was determined that the military pilot under training failed to see and avoid other traffic while conducting a training mission. Relatively inexperienced, the trainee pilot had a total of 25 flying hours and delayed a corrective manoeuvre as ordered by his instructor. This caused the right wing of the Sabre to struck the horizontal stabilizer of the B727.