Did a electric blow out happen?

There has been possible theory of a possible electrically blowout in the system. Since, now we have to consider all possible events in the world, even the ones that have a very slim chance of happening. So for a electric blowout is a situation where the main computer just complete shuts down. So this can cause the ACARS to go out along with the transponder and all its valuable information. Could also cause the communication to be clear between the ground and the air. But in all of this events that did happen and indeed did connect, one puzzle piece is still missing. These planes are built with the advance computer system in world and even when the main computer system goes down the backup system should turn giving the plane enough power to get to the nearest airport.
To all that don't know the even with out power, the engine continued to run. Just the autopilot will not be there to assist the pilots aid. So that ties into how the flight path look since the plane could be flying without communication of what has happened. But how could we answer this whole topic without the most valuable piece of information and the information is within the black boxes. Which by now if it is in the water the black box would be decompressed and burst destroying the memory board inside it. So, who knows if the power went out blocking any type position of the plane, we will not know for a while.

And for those people how the Black boxes are made and how strongly built they are here is a picture of what is made of.





Resource: Irving, Clive. "MH370 Was Crippled by Sudden Electrical Failure." The Daily Beast. Newsweek/Daily Beast, 8 Dec. 2015. Web. 21 May 2016. This article was not the most trusted due to other links that go to politics a lot but besides that it only really gave me a summary of the possaible electric failure so won't consider this my best ones.