http://avherald.com/h?article=4a87b147&opt=0Canada's TSB reported the aircraft landed with 800lbs of fuel remaining. Due to a fuel pump failure in Kugluktuk (the departure airport), the crew had been unable to take on fuel there.
At 2 min 30 seconds into the attached audio clip the pilot explains the refueling problem was due to someone having tampered with the fuel pump.