Toa Domestic Airlines Flight 63

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Toa Domestic Airlines Flight 63
Japan Domestic Airlines YS-11 JA8764.jpg
The aircraft involved in the accident in April 1971
DateJuly 3, 1971
Summary Pilot error leading to CFIT
SiteYokotsudake, Hokkaido, Japan
41°56′00″N140°47′00″E / 41.93333°N 140.7833°E / 41.93333; 140.7833 (Yokotsudake)
Aircraft type NAMC YS-11A-217
Aircraft nameBandai-go
Operator Toa Domestic Airlines
Registration JA8764
Flight origin Okadama Airport
Destination Hakodate Airport

Toa Domestic Airlines Flight 63, registration JA8764, was a NAMC YS-11A-217 en route from Okadama Airport in Sapporo, Japan to Hakodate Airport. On July 3, 1971, the plane left Sapporo Okadama Airport on a scheduled flight at 08:30. After arriving in Hakodate airspace, the plane was descending below 1800 metres when it crashed at 09:05 into the south face of Yokotsudake (Yokotsu Mountain). All 64 passengers and four crew on board are killed in the scene. The cause of the crash was determined to be pilot error that followed strong winds pushing the plane off course which leads to CFIT.

The Aircraft Accident Investigation Commission (AAIC) was formed soon after the crash. [1]

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  1. Sato, Yasuo. "Activities of Japan's Aircraft and Railway Accidents Investigation Commission" (PDF). Japan Railway & Transport Review (33).