The data recorders are expected to give some insight into what happened during the flight’s final moments, when pilots were making critical decisions.

The deadly crash of Air India Flight 171 last week has centered renewed scrutiny on the airplane's manufacturer, Boeing, and this time it's the 787 Dreamliner in investigators' sights.

While authorities are still investigating what led to the fatal crash, hundreds of relatives of the victims have been providing DNA samples to identify the remains of their loved ones.