11.  Investigators focused on an engine that fell away from the doomed plane.

12.  Passengers on doomed planes reached loved ones by cell phone, saying a few words final words before the connections broke.

13.  The same equipment in the doomed plane was found in a similar condition.

14.  Those recorders could contain conversations from the cockpits of the doomed planes.

15.  A spokesman for the Russian air force told AFP that General Sergei Seleznev, military commander for the Leningrad region, was on board the doomed plane.