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Flight 447 black boxes found, but recovery may be impossible

Text by News Wires

Latest update : 2010-05-06

The black boxes of Air France flight 447, which crashed into the Atlantic Ocean in June 2009 en route from Rio to Paris killing 228 people, have been located by the French navy, but investigators say they may not be able to retrieve the devices.

AFP - The French navy has located the flight recorders of the Air France jet which crashed in the Atlantic almost a year ago, but retrieving them may be a mission impossible, officials said Thursday.
   
The recorders have been localised "with a margin of error" of three nautical miles (five kilometres) in a remote area of the Atlantic Ocean, said defence ministry spokesman General Christian Baptiste.
   
French military officials cautioned however that this breakthrough did not mean that the black boxes will be successfully retrieved from the bottom of the ocean floor.
   
"It's like trying to find a shoe box in an area the size of Paris, at a depth of 3,000 metres (9,800 feet) and in a terrain as rugged as the Alps," said navy spokesman Hugues du Plessis d'Argentre.
   
Flight 447 was en route to Paris from Rio de Janeiro when it went down on June 1 in stormy weather, killing all 228 people on board.
   
The crash was the worst in Air France's 75-year-history.
   

Chronology of Air France Flight 447

All times in Paris local time (GMT+2)

00:19, Monday, June 1: Air France flight 447 leaves Rio de Janeiro airport

03:30, Monday, June 1: Last radio contact between plane and Brazilian traffic control

04:00, Monday, June 1: AF 447 enters a zone of heavy turbulence

04:15, Monday, June 1: Plane sends out an automatic message signalling a fault in the aircraft

07:00, Monday, June 1: Air France concludes there are problems with flight 447, but at this stage the pilot still has enough fuel to stay in air

11:15, Monday, June 1: Air France flight 447 scheduled to land in Paris CDG airport. Air France opens crisis centre for relatives and loved ones of people on board

 

Intensive but unsuccessful sweeps of the Atlantic Ocean using submarines equipped with deep-sea sonar had turned up some debris but no sign of the flight data and cockpit recorders.
   
The flight recorders are key to understanding what caused the disaster, which remains largely unexplained.
   
The French Navy started a new operation on Monday to find the black boxes.
   
Welcoming the news, the families of the crash victims said it raised hopes but they quickly added that they would hold off on any celebration until the flight recorders were raised to the surface.
   
"This is a sign of hope, it's very good news for the families after 11 months of waiting," said Jean-Baptiste Audousset, president of an association grouping the families of some 60 victims.
   
Government spokesman Luc Chatel added: "We must remain extremely cautious because at this time we are talking about an area where they have been located."
   
"We then have to see if it is possible to recover the black boxes, depending on the depth, the surface area to cover... So I will remain extremely cautious," Chatel told France Info radio.
   
The breakthrough in pinpointing the area where the black boxes can be found came after new computer software was used to decode data collected by deep-sea submarines during their search last summer, said the defence ministry.
   
"They were able to discover signals that are compatible with the pings" from the black boxes, said Baptiste.
   
The latest search effort was set to wrap up on May 25, but officials said it may be extended again following the new findings.
   
The latest search covered an area of some 1,500 square kilometres (580 square miles) in a remote area far off the coast of Brazil.
   
The French air accident agency BEA has said that the jet's speed probes, made by French firm Thales, gave false readings and were "one of the factors" in the crash but "not the sole cause".
   
Pilots' unions and some of the relatives of victims of June's crash have accused Air France and Airbus of ignoring longstanding problems with air speed monitors on its jets in the run up to the disaster.
   
The companies insist that their jets met all safety standards, but they have nevertheless now replaced the speed monitors made by the French electronics company Thales with a different model produced by US firm Goodrich.

Date created : 2010-05-06

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