The flight was delayed after two pilots insisted on being given first-class seats, as a result passengers who had been upgraded from business class had to be sent back.
“Both of them did not show concern for the customers and the organisation. We will levy penalties in accordance with corporate discipline,” the airline’s president, Sumeth Damrongchaitham, said at a press conference on Monday.
He added that the company also would have measures to remedy passenger grievances that meet international standards. The whole organisation is responsible for this and “we are committed to improving internal and external confidence”, he said.