Story highlights Heather Cho asks for forgiveness, says she takes full responsibility, airline says

Korean Air says Cho has resigned from some roles but is keeping VP title

Airline says ordering a flight assistant to get off the plane was excessive

Cho ordered a plane back to the gate after a flight attendant served nuts in a bag

(CNN) A Korean Air executive has resigned from some of her duties after she ordered a flight to be turned around to the gate and a flight attendant off the plane because she was served nuts in a bag instead of on a plate.

Heather Cho, whose Korean name is Cho Hyun-ah, resigned Tuesday from the airline's catering and in-flight sales business, and its cabin service and hotel business divisions, an airline spokesman said.

But she is keeping her title as a vice president of the national carrier, he said.

As for the next steps, the spokesman told CNN there is an investigation going on, so "we will have to see."

The incident occurred Friday at New York's JFK airport on a flight due to take off for the South Korean city of Incheon.

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