Soot was... LONDON—Egyptian officials on Saturday said repairs were successfully carried out on EgyptAir Flight 804’s cockpit voice recorder, bringing investigators closer to being able to determine what onboard problems pilots were battling before the plane crashed,Data analyzed from the other black box, the flight data recorder, and wreckage from the Airbus Group SE jetliner that crashed May 19 suggest a fire had broken out on board.

Source: Wall Street Journal July 02, 2016 12:13 UTC