Even after finding the two “black boxes” of the China Eastern Airlines flight that crashed last week, it may be a long time before investigators figure out what caused the plane to nosedive. Here’s a look at what comes next in the investigation.
CORRECTS NUMBER OF THE VICTIMS - In this photo released by Xinhua News Agency, search and rescuer workers conduct continued search operations at the China Eastern flight crash site in Tengxian County on Saturday, March 26, 2022, in southern China's Guangxi Zhuang Autonomous Region. The second "black box" has been recovered from the crash of a China Eastern Boeing 737-800 that killed 132 people last week, Chinese state media said Sunday.
The cockpit voice recorder captures the voices of pilots and others in the cockpit, audio alerts and the sound of engines or switches being moved. It stores at least two hours of sound before starting to record over itself.Flight data recorders constantly capture at least 88 pieces of information, including airspeed, altitude, direction and whether the nose of the plane is pointing up, down or level. They can also record the position of wing flaps and whether the plane is flying by autopilot.
Flight recorders used to use magnetic tape but now are digital, which allows them to hold more information.Searchers found the cockpit voice recorder first and then the flight data recorder. The two orange cylinders, the size of a large, elongated cannister, were dirt-covered. The second one was found under 1.5 meters of soil.
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