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.

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 Cessna plane that crashed while flying to Nome, Alaska, last month, killing all 10 people on board, was hundreds of pounds too heavy for icing conditions, a National Transportation Safety Board report says.