The Civil Aviation Authority of Vietnam Monday suspended an air traffic controller and demoted another for fighting while on duty last January at the Ho Chi Minh City airport, Tuoi Tre newspaper reported.
Tran Xuan Vinh had his license suspended for three months and was fined VND7 million (US$335) for "attacking people on public duty" and damaging flight control equipment.
Truong Hoa Hiep, who was attacked by Vinh, was demoted from his position of shift chief, for failing to manage his shift.
The CAAV also fined the Southern Flight Management Company, the duo's employer, for failing to report the incident to aviation authorities.
The fight occurred on January 17 when Vinh gave an instruction to a pilot that had already been given by another controller.
Hiep, who was in charge of the shift, told Vinh to hand over the traffic control job to him.
But Vinh refused and assaulted Hiep.
The CAAV said the fight occurred at a time when many airplanes were operating in the airspace managed by the center, including foreign ones, and some of them failed to receive instruction.