Russian investigators are continuing to probe last Sunday's crash landing of an Aeroflot passenger jet that killed 41 people. <br />Local media say investigators increasingly believe the fire started due to pilot error after the plane was struck by lightning.<br />Russia's Investigative Committee has opened a criminal case and is looking into whether the pilot violated air safety rules.<br />No official reason has been given,.... but authorities are considering equipment failure from a lightning strike as the primary cause of the crash. <br />
