Search teams have retrieved the cockpit voice and flight data recorders from the EgyptAir plane which crashed into the Mediterranean in May, killing all 66 on board.
It is hoped analysis of the black boxes will shed light on why the plane crashed en route from Paris to Alexandria.
At present no militant group has claimed responsibility for bringing down the aircraft.
European security officials have said none of the people aboard EgyptAir flight 804 were terror suspects.
The three officials, who spoke to AP on condition of anonymity, have confirmed that none of the 66 people on the passenger manifest were on the terror watch list.
The list is often used by European and American security and law enforcement agencies to identify potential suspects.
Work has begun on analysing data from the two black boxes from the fated EgyptAir flight that crashed into the sea in May.
French air accident investigators confirm the signal detected earlier is from a flight recorder.
The head of Egypt's forensics authority said it is 'too early' to know what caused the EgyptAir plane to crash into the Mediterranean sea.