The black boxes will provide cockpit conversations and data related to the plane's engine and control settings to investigators and help them in determining the cause of the crash.

The black boxes will provide cockpit conversations and data related to the plane’s engine and control settings to investigators and help them in determining the cause of the crash.

Air India plane crash investigators have found both of the Boeing 787's "black boxes," hopefully brining an understanding of the cause of the disaster a step closer.