Investigators will today reveal precise details of how an Air France plane crashed into the Atlantic killing 228 people in 2009.
The flight was en route from Rio de Janeiro to Paris on June 1st, 2009 when it crashed.
Officials say today's report will not formally establish who was to blame for a disaster that has implicated pilots, the airline and plane and equipment makers.
Three Irish women, Aisling Butler, Jane Deasy and Eithne Walls, were on board the fatal flight.
50 bodies were recovered in the days immediately after the crash and this year a further 104 bodies were recovered.
More than 70 could not be found.