The regional airline flight in Alaska that crashed, killing all 10 people onboard, was overweight before it took off, according to a preliminary report released Wednesday by the National Transportation Safety Board.

A small passenger plane that crashed last month in Alaska, killing all 10 onboard, was nearly 1,000 pounds too heavy for the weather conditions, according to a preliminary report on the incident released Wednesday.

A commuter plane that crashed on sea ice off Alaska, killing all 10 people on board, was half a ton overweight for a trip into icy conditions, the National Transportation Safety Board said in a preliminary report released Wednesday.