Boeing stock rose early Thursday as investors waited for details from flight data recorders from Air India flight 171, which crashed on June 12, less than a minute after taking off from an airport in Ahmedabad,

Indian aviation accident authorities are set to release a preliminary report this week into the Air India Ltd. plane that crashed almost a month ago, a person familiar with the plan said.

A preliminary report into the deadly crash of an Air India jetliner in June is expected to be released by Friday, three sources with knowledge of the matter said, with one adding the probe had narrowed its focus to the movement of the plane's fuel control switches.