Investigators in India are studying the black boxes of a Boeing 787 Dreamliner after recovering them from the aircraft wreckage to ascertain the cause of last week’s plane crash that left at least 270 people dead.

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.

Boeing stock was wavering on Tuesday as investors awaited more information about the 787 crash in India.Shares of the commercial jet maker gained 0.2% to $202.09 in midday trading, while the S&P 500 and Dow Jones Industrial Average fell 0.