A preliminary investigation released last week by India's Aircraft Accident Investigation Bureau found confusion in the cockpit shortly before the June 12 crash, and raised fresh questions over the position of the critical engine fuel cutoff switches.

The plane crash claimed the lives of 260 people, including 19 who were in the medical hostel building reduced to rubble because of the crash.

As investigators probe possible pilot error in the Ahmedabad plane tragedy, aviation leaders push for in-cockpit video recorders

International airlines from South Korea and India are preparing to inspect its Boeing fleets following findings from the Air India crash investigation.