All Nippon Airways (ANA) Flight 60 (全日空60便, Zennikkū 60 Bin) was a Boeing 727-81 aircraft making a domestic commercial flight from Sapporo Chitose Airport to Tokyo Haneda International Airport. On February 4, 1966, all 133 people on board died when the plane mysteriously crashed into Tokyo Bay about 10.4 km (6.5 mi; 5.6 nmi) from Haneda in clear weather conditions while on a night approach. The accident was the worst involving a single aircraft up to that time.