Reports in Egypt’s Al Ahram newspaper say an emergency locator (ELT) signal from the wreckage of EgyptAir flight 804 has been detected by Airbus.<br /><br /> It’s a big breakthrough in the search for the crashed plane which has so far been limited to recovery of debris. <br /><br /> Search teams have been working to find the two black box flight recorders that will offer clues on the plane’s final moments. <br /><br /> Cairo Vigil<br /><br /> Friends, families and colleagues of those on board gathered in front of Cairo’s opera house to remember the sixty-six victims. <br /><br /> Mourners placed flowers and candles in front of pictures of flight 804’s passengers and crew members.<br /><br /> EgyptAir flight 804 crashed into the Mediterranean Sea on the morning of May 19 with 66 people on board, including 30 Egyptians and 15 French nationals.