could be the autopilot or what's known as the mcast system. an automated system to help a pilot avoid a low-speed stall. that position is from the lion air crash back in october. the system was apparently triggered by a faulty sensor reading. now, the question is is it that same system that forced the plane down in the ethiopia airlines crash. that will be an answer. and perhaps that question is be here when they're looking at the black box and the data. we know the work on the flight data recorder which has the parameters and readings from the instruments of the airplane, that began yesterday. cockpit voice recorder work in the cockpit itself started a short time ago.