CNN State of the Union With Candy Crowley March 23, 2014 16:06:00
Steven trimble, aviation reporter and editor for "flight global." thanks for joining me. first question, why are we halfway through the life of a battery? it can't cost ma much to change out batteries for something that lasts longer than 30 days. >> every component on an aircraft goes through a very expensive certification process. when these black boxes were design and certified there was a spec developed and that was certified if you change anything in that it's a very long and costly process to requalify it to the conditions that a black box has to survive. >> you mean requalify for governm...
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