The origin of the drama of the Boeing ukraine shot down on January 8, near Tehran, causing the death of 176 people, is accurate. According to a report from civil aviation of iran (CAO), a " human error ", the improper adjustment of a military radar, is the" key element ". "There has been a breach due to human error in the monitoring of the procedure," calibration of a radar system having induced an "error 107 degrees" in the system, not allowing to understand the trajectory of objects within its field, says this report, published in the evening of Saturday 11 July.
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This initial fault " is at the origin of a string to danger [of events] which of course could be controlled if other measures had been taken ". But, according to the document of the CAO, presented as a "report the facts" and not as the final report of the investigation, other errors have occurred in the minutes fatal that followed.
air Defenses on high alert
civil Aviation, and ultimately a defect in the transmission to the coordination centre of the defence units of the data on the target seen by the radar. A general in iran stated in January that a number of communications had been scrambled that night.
A "bad identification"
The CAO notes that, in spite of the erroneous information it had on the trajectory of the aircraft, the operator of the radar system would have been able to identify his target as an airliner, but, on the contrary, there has been " mis-identification ". The report also notes that the first of the two missiles fired on the plane was set on fire by the operator of a battery of defence, without that it would have received a response from the coordination centre " which he depended on. The second missile was shot 30 seconds later, taking into account " the continuity of the trajectory of the detected target ", the report adds.
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The flight PS-752 of the company Ukraine International Airlines connects Tehran to Kiev, was gunned down on 8 January by two missiles. Of the 176 people on board, the majority of Iranians and Canadians, but also 11 Ukrainians (including the 9 crew members), have perished in the disaster.
The tragedy has elicited a sharp reproof in Iran, especially after he had taken three days for the armed forces acknowledge that they have shot down the plane "by mistake", and after that an operator of a battery of missiles took it for a missile. For months, Canada and the Ukraine are demanding that Iran sends the black boxes of the device to the foreign for the data to be extracted and analysed, the islamic Republic does not have the technical means to do so.