A former Korean Air executive who delayed a plane over how nuts were served has been detained. Ms Cho, also known as Heather Cho, has already apologised and resigned as head of the airline's flight service. Another airline executive has also been arrested, accused of destroying evidence relating to the case. A government investigation found that Ms Cho screamed and shouted abuse at a flight attendant after he served her macadamia nuts in a bag. She ordered the steward to kneel and beg for forgiveness then ordered the plane to go back to the terminal at New York's JFK airport to offload the attendant, who was fired on the spot before the plane proceeded on its journey. He has since been reinstated. The incident forced the flight to Seoul to be delayed. Her father, Korean Air chairman Cho Yang-Ho, has apologised for his daughter's "foolish act".