Sen. Ted Stevens (R-AK) (R), seen in this September 22, 2008 file photo in Washington, was on board a small plane that crashed on August 9, 2010 in rural Dillingham, Alaska. Ex-NASA chief Sean O'Keefe was also believed to be on board the aircraft and it is unknown if there are any survivors. UPI/Roger L. Wollenberg/File

Photo by: ROGER L. WOLLENBERG

Sen. Ted Stevens (R-AK) (R), seen in this September 22, 2008 file photo in Washington, was on board a small plane that crashed on August 9, 2010 in rural Dillingham, Alaska. Ex-NASA chief Sean O'Keefe was also believed to be on board the aircraft and it is unknown if there are any survivors. UPI/Roger L. Wollenberg/File