https://aviation-safety.net/wikibase/276987
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https://aviation-safety.net/wikibase/276988
...see the links above for more information.Two Republic of Korea Air Force (RoKAF) KAI KT-1 Woongbi trainer aircraft, operated by 3 Training Wing, collided mid-air and crashed into a montain near Sacheon Air Base/Airport (HIN/RKPS).
Three pilots died and one survived with serious injuries.