A failure in the black box that records conversations between pilots in the plane of Air Algérie last July 24 crashed in Mali complicates the investigation to determine the causes of the accident, investigators said today, trying to collect more items to counteract this gap.
The tape band that second black box at the back of the unit could be read, but the audio signal extracted is "unintelligible" and for the moment can not be used, said at a press conference the director of the French Office investigation and Analysis (BEA), Rémy Jouty. In the current state of research of the accident, which took place on July 24, the reasons why it failed that recording is unknown, but experts believe it was a problem in the other system to bumping against the floor.
The BEA has used "top specialists" to try to gather the information contained in the black box, but claimed not to be able to know if the result will be satisfactory. Work is now focused on the reconstruction of the trajectory of the apparatus, an MD-83 of the Spanish company SwiftAir chartered by Air Algérie that crashed with 110 people on board, mostly French and six crew members, all Spanish .
The craft took off in Ouagadougou, capital of Burkina Faso, at 01.15 and 01.39 local time, two minutes after reaching cruising speed, began to reduce their speed and altitude progressively until contact with him was lost, at 01.47, while flying at 740 miles per hour. At that time he was alone at 490 meters and crashed "about a second", which explains, according to researchers, that the remains found are powdered and concentrated in a small area of about 9 hectares.
The crew, as established until now, had proceeded to "moderate route changes" and a typical strategy designed to prevent storm area until shortly before impact the plane swerved to the left for yet unknown reasons. "There is no favorite hypothesis.'s Weather conditions may be a factor which helps to explain what can happen on a flight that ends in accident, but there is nothing to say that we should just that," said today the director of BEA.
The agency will continue its investigations comparing his career with the behavioral model of the aircraft, and to date, he said, nothing suggests that disintegrated in flight, which does not exclude that there could be damage then. "If it had disintegrated remains have been more ground," said Jouty not without making it clear that it is also premature "to exclude the thesis of a deliberate action."
The crew experience in this type of route and equipment, as well as the number of hours flown, is another of the elements that are part of the investigation, although at the moment is not the "priority" look. "We move forward step by step. Primero (to draw) path, then the model of aircraft behavior, and only then we can go further to elaborate the causes," said today the representative of BEA.
Three working groups are on the front: one dealing with reproduce the final path, one focused on the development of flight, and a third set in gathering information from air traffic control, weather data and other pre-launch.
This first presentation to the press was intended to prevent speculation and the publication of a first draft report will not arrive until mid-September. "No research is simple. Avanza at a normal pace, sometimes with disappointment," admitted Jouty, whose organization works in collaboration with experts from Algeria, Burkina Faso, Spain, France, Lebanon and USA.
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