Former Korean Air executive Heather Cho, who was jailed for an outburst over macadamia nuts, has been freed after winning a court appeal.
Cho was jailed for a year in February but the court ruled she should serve a suspended sentence.
She was convicted of violating plane safety after ordering a taxiing plane back to the gate to offload a steward who had served the nuts the wrong way.
But the court on Friday ruled she did not cause a change in the flight path.
It gave Cho a reduced sentence of 10 months and suspended the prison term for two years.
She still remains guilty of using violence against flight attendants.
Cho, also known as Cho Hyun-ah, was a vice-president of Korean Air. She is also the daughter of the company's chairman.
'Heavy criticism'On 5 December last year, Cho became angry while onboard a Korean Air flight in New York after she was served macadamia nuts which she did not ask for, and which were still in a bag, not in a bowl.
She confronted both the flight attendant who served her and the chief steward about the presentation.
Cho then ordered the plane, which was taxiing at JFK Airport, to return to the terminal to offload the chief steward.
Cho has been in prison since she was arrested on 30 December. In February she was convicted and sentenced to one year in jail.
One of the judges on the appeal panel said they took into consideration that she was a first time offender.
"It appears that she will have to live under a heavy criticism from the society and stigma," he said.
The case attracted intense attention in South Korea, reopening a national debate about the Korean business system, which is dominated by family firms known as chaebols.
Some of the families running these businesses have been accused of high-handedness and acting with impunity.
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