Prosecutors said Thursday that they have submitted an appeal to reverse an appeals court decision that acquitted the eldest daughter of Korean Air Lines Co.'s chairmen of changing an aircraft's flight route.

On May 22, the Seoul High Court sentenced Cho Hyun-ah to 10 months in prison, but suspended the term for two years.

Cho was immediately released.

Prosecutors of the Seoul High Office handling the appeal submitted it with the Supreme Court, they said.

"We have appealed the verdict after discussing with prosecutors investigating Cho's case and the trials at lower courts," said a prosecutor.

She had been jailed since December for forcing a Korean Air flight departing from New York back to the gate because of the way her nuts were served -- in an unopened bag instead of on a plate.

In February, a lower court delivered a one-year sentence, convicting her of endangering flight safety as she forced the chief steward off a taxiing flight. (Yonhap)