Relatives of passengers on the Air France's flight AF447 arrive at the third Integrated Center of Aerial Control and Defense in Recife June 5, 2009. Airbus has warned airline crews to follow standard procedures if they suspect speed indicators are faulty, suggesting that technical malfunction may have played a role in this week's Air France crash. REUTERS/Paulo Whitaker (BRAZIL TRANSPORT DISASTER)
REUTERS/PAULO WHITAKER