Originally published by the Voice of America (www.voanews.com). Voice of America is funded by the US Federal Government and content it exclusively produces is in the public domain. June 3, 2009 French Investigator: Recovery of Air France Flight Recorders in Doubt --------------------------------------------------------------------- http://enews.voanews.com/t?ctl=24932C5:A6F02AD83191E16085DFB3D554891B0D2E7CA1C1B166B639& Accu Weather tells VOA Flight 447 may have encountered 161-kilometer per hour wind updrafts early Monday A leading French accident investigator probing the crash of an Air France jetliner says he is not optimistic that search efforts in the south Atlantic will produce the doomed plane's flight recorders. Paul-Louis Arslanian, head of France's accident investigation agency, during news conference at Le Bourget airport, 03 Jun 2009Speaking Wednesday in Paris, chief accident investigator Paul Louis Arslanian said the international probe may not reveal all of the factors behind the crash of Flight 447. The plane, headed for Paris from Rio de Janeiro, crashed into the sea early Monday off Brazil's northeastern coast after flying into heavy storms. All 228 people onboard are presumed dead. High winds Arslanian says there is no evidence the jetliner encountered any problems before takeoff, and says an initial report on the crash is likely by the end of the month. Meanwhile, a lead forecaster with the worldwide commercial forecasting service Accu Weather tells VOA that Flight 447 may have encountered 161-kilometer per hour wind updrafts early Monday, as it flew into a wall of tropical storms near the equator. Meteorologist Henry Marguisity said the analysis comes from atmospheric data near the flight path later gathered by the weather service. He would not speculate about whether the plane was also hit by lightning. Wreckage found As search efforts expanded Wednesday, aircraft from Brazil, France and the United States are scoured the sea surface near the site where plane wreckage was discovered Tuesday. The aircraft include a U.S. Navy Orion reconnaissance plane with sophisticated sonar that may help investigators pinpoint the location of the plane's flight recorders. However, experts are warning the flight recorders are likely 6,000 to 9,000 meters below the ocean's surface, and say it it unclear whether salvage equipment could be extended to those depths. Shortly before the plane vanished, it transmitted automatic signals reporting multiple failures in its electrical and pressurization systems. Air traffic controllers heard no distress call or any other unusual message from the pilots. Some information for this report was provided by AFP, AP and Reuters. .