Cho, the daughter of Korean Air's chairman, has pleaded not guilty to four charges. In the final day of testimony, she defended her actions as the result of devotion to work.
Cho ordered the chief flight attendant off a December 5 flight after a heated confrontation with cabin crew, forcing the plane to return to the gate at John F. Kennedy Airport in New York. She was angry at being offered nuts in a bag, instead of on a dish, which she said violated the airline's service rules in first class.
Prosecutors are seeking a 2 year prison sentence for Yeo Woon-jin, the Korean Air executive accused of pressuring cabin crew to cover up the incident and to lie to investigators from South Korea's transport ministry.
They also called for 2 years prison for Kim Woon-sub, a transport ministry official and former Korean Air executive accused of leaking secrets about the ministry's investigation.