The incident occurred on Feb 12 after a Chinese man refused a flight attendant’s request to return his seat to the upright position during a meal, said Chatree Pongsak, director of THAI’s flight operations safety department.
The passenger insisted he want to keep on sleeping, prompting two other Chinese, a man and a woman, who were sitting at the back, to shake his seat in a bid to force him to adjust it. A heated argument followed and turned into a fist fight, during which objects were thrown.
The incident was video taped by a passenger who later uploaded the 1.31-minute clip on YouTube on Feb 15. The uploader, using the name "Syver Lauritzsen", posted that “the argument became a little too heated for the guy on the left, and he had to be extracted from the plane by paramedics. He seemed to be fine.”
He also put false subtitles in the video to make a joke out of the rare fight on board.
Mr Chatree said the flight crew had implemented standard procedures to stop the brawl and seated the two sides at different spots of the plane.
The measures included recording their names to ensure they would be seated separately if they travel on the same flight again, he added.
A video clip uploaded by a YouTube user "Syver Lauritzsen” shows three Chinese tourists fiercely arguing and fighting on board a THAI plane heading to Beijing last month.