Russian investigators sifting through wreckage found by ships trawling the crash site said they had a piece of what appeared to be a S200 surface-to-airmissile.
Nine major kinds of fault in electrical source system of surface-to-airmissile have been diagnosed respectively through BP and SOFM neural network, and pleasing results are obtained.
U. S. intelligence officials believe the plane was accidentally hit by a Ukrainian S-200, or SA-5, missile - a large surface-to-airmissile built to shoot down heavy bombers flying at high altitudes.