The Bering Air flight that crashed in sea ice off Alaska, killing 10, was over the weight limit for a "flight into known or forecast icing conditions," the NTSB said.

JUNEAU, Alaska — A commuter plane that crashed ... and that the equipment would be examined as part of the investigation. NTSB preliminary reports don’t usually reveal the cause of a crash ...

The weight is just a "data point" in the ongoing investigation, cautioned Clint Johnson, who leads the NTSB's Alaska region. A final report including probable causes can take a year or more after ...