Another black box positioning signal was not found at the scene. What factors may affect this?

After the crash of China Eastern Airlines MU5735, the search and rescue personnel searched 45,000 square meters and found one of the black boxes of the crashed plane! After the black box was found, it was quickly sent to the relevant technical departments in Beijing. The technical department will comprehensively evaluate the situation of the black box, then restore the exported data, and so on! Although one of the black boxes of the crashed plane was found, there was still a black box on the plane, so the search and rescue personnel continued to search for another black box by pulling the net!

It is reported that the field staff can't capture the signal sent by the black box with instruments, and the positioning signal can't be found, so the search and rescue personnel can only start the blind search mode, and all search and rescue personnel will remember every inch of land they find in order to find another black box with the fastest speed! Now, it is stormy weather in tengxian, Wuzhou City, Guangxi. In this weather, Seeker can only suspend the search. A large amount of accumulated water and small-scale mudslides caused by heavy rain almost wasted the efforts of search and rescue personnel!

factor

The black box can't send out a positioning signal. The first reason may be that the plane fell from a height of 10 thousand meters, the impact force was too strong and the temperature was too high, which caused the black box to be seriously deformed and could not send a signal! The second reason may be that the black box is not in the search range and may have fallen to the other end of the mountain! In this way, if the instrument is no longer in the search range, the natural searcher can't find the signal! The third reason may be that the plane hit the ground and exploded, and the outer protective shell of the black box was blown up, and then the internal chip was seriously damaged and could not be searched! The fourth reason may also be that the black box was washed into the ground nearly 100 meters, and the instrument may not be able to recognize the positioning signal of the black box!

confidence

Although the on-site instrument could not find the positioning signal of another black box, the search and rescue personnel expressed confidence in finding another black box! At present, the way of search and rescue is to pull the net, and don't let go of any inch of land inside and outside the core area of the crash!

Another black box positioning signal can't be found at the scene, indicating that the black box may have been seriously damaged!