Chittagong Bureau : A Chittagong bound flight of Regent Airways survived a tragic accident yesterday (Tuesday) mysteriously. The air regent flight took off from Dhaka for Chittagong at 11.20 am and after 10 minitues , technicalfault was detected in the engine and the door of the flight traced some troubles and wind was entering inside the flight . Then the passengers started hue and cry, captain of the flight said. Pilot Zakaria did not land at Chittagong Airport and returned to Dhaka airport safely. Chittagong Airport sources said, following the unexpected technical fault in the Regent flight , the Calcutta flight from Chittagong was cancelled.