The probe into last month's crash of an Air India plane in Ahmedabad is far from over and it is unwise to jump to any premature conclusions, airline CEO Campbell Wilson said in an internal memo on Monday after the release of a preliminary report by investigators.

The plane's flight recorders had one pilot asking the other why they had switched off the fuel, and the other saying he had not.

Fuel control switches for the engines of an Air India flight that crashed last month were moved from the ''run'' to the ''cutoff'' position moments before impact, starving both engines of fuel, a preliminary investigation report said early Saturday.