Cho Hyun-ah delayed the flight’s departure after becoming enraged with a flight attendant who put a snack in a bag rather than on a plate.

The chairman of Korean Air has apologized for his 40-year-old daughter’s behavior, which resulted in a flight delay called “nut fury.”

Cho Yang-ho made a deep bow in front of reporters on Friday in response to public outrage over his daughter’s behavior and the airline’s handling of the issue.

Cho Hyun-ah, Korean Air’s head of cabin service, grew enraged when a flight attendant in first class delivered her macadamia nuts in a bag rather than on a plate. She ordered a senior crew member off the plane, forcing it to return to the JFK airport in New York.

Cho’s father thought her actions were stupid and said he was sorry he didn’t raise her better.

“It’s my fault,” he admitted. “As chairman and father, I beg the public’s pardon.”

Cho Hyun-ah, in her first public appearance since the event on December 5, made a deep bow shortly after her father’s apologies. She was meeting with officials from the South Korean transport ministry who were looking into whether she had broken any aviation safety laws.

Her head bowed as she spoke briefly to journalists at the press conference. On a live television broadcast, her voice was inaudible.

Cho’s conduct sparked outrage in South Korea and around the world. The country’s media referred to her as a “princess,” while some Koreans characterized her as a national embarrassment.

Separately, prosecutors searched the Korean Air offices on Thursday after a civil society group filed a complaint over Cho’s behavior aboard the plane.

The airline had previously condoned her behavior while apologizing for any inconvenience caused to passengers.

Cho quit as Korean Air’s head of cabin service earlier, but remained in other management positions at the airline and its subsidiaries. Her father said on Friday that she was leaving all management positions at Hanjin, Korean Air’s parent business.