He also removed airline president Bhisit Kuslasayanon, said to be close to the Finance Ministry, from the board.
After protests by the media and the union, whose members attacked Pracha's car, the changes were reversed.
Thaksin has been a rabid critic of the airline since he and other passengers on a domestic flight narrowly escaped death on March 3 when a parked Boeing 737 exploded at Bangkok airport a half-hour before they were supposed to board it.
US investigators blamed an overheated fuel tank.
The company stressed the need for "good governance and corporate transparency."
RSS