Comparing: FAA trying to determine cause of malfunction that delayed flights

http://www.washingtonpost.com/local/ronald-reagan-national-and-other-northeast-airports-experiencing-flight-delays/2015/08/15/b5dac03a-4363-11e5-846d-02792f854297_story.html

• Pink: Archived August 15, 2015 at 2:56pm EDT
• Green: Archived August 15, 2015 at 3:14pm EDT

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