April 14th, 2014
08:46 PM ET

MH370: Underwater drone Bluefin-21 aborted mission, returns early

The autonomous underwater vehicle Bluefin-21 - said to be the search's best hope for finding Malaysia Airlines Flight 370 - has aborted it's first mission and returned to the surface of the Indian Ocean.

Malaysia Airlines Flight 370: Co-pilot's cell phone was on, U.S. official says

The mission was supposed to take 24 hours to map the first portion of the search area: 16 hours to map, four hours' of travel time to the ocean floor and back, and four hours to analyze the data gathered.

[cnnvideo url='http://www.cnn.com/video/#/video//video/data/3.0/video/bestoftv/2014/04/14/exp-erin-panel-malaysia-airlines-plane-bluefin-21-search.cnn' inline='true']

In an interview with CNN's Erin Burnett, Captain Mark Matthews, who heads the U.S. presence in the search effort, explains why the underwater robot returned to the surface earlier than planned.

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Filed under: International • Malaysia Airlines Flight 370 • News • Tech
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