Boeing stock was rising 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, India.

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.

Indian forensic investigators have identified all 260 people killed in last month's crash of a London-bound passenger plane, health authorities said Wednesday, ahead of a hugely anticipated preliminary report into what went wrong.