UPDATE 2-EADS official, ex-US Sen. Stevens in plane crash
August 10, 2010 at 10:50 AM EDT
WASHINGTON, Aug 10 (Reuters) - The head of plane manufacturer EADS North American unit, Sean O'Keefe, and former Republican U.S. Senator Ted Stevens were aboard a plane that crashed in Alaska, and it was not immediately known if they survived, EADS and a congressional source said on Tuesday.