New Delhi, March 08 (ANI): Talking about a Malaysia Airlines flight carrying 227 passengers and 12 crew lost contact with air traffic controllers early on Saturday en route from Kuala Lumpur to Beijing, Aviation expert Harsh Vardhan said that the time gap or the time passed after the incident is a cause of concern. He said that the flight is such that it can not land at any unknown destination even in an emergency. Vardhan quoted the reasons for the disappearance as either a mechanical failure or rough weather or sabotage.