oh this suddenly got way more interesting. how in the world is it possible to cause a FDR to stop recording, and how did that happen to both of them at the same time? isn't this precisely why they have two? fascinating
Re: https://www.francetvinfo.fr/monde/coree-du-sud/crash-en-coree-du-sud-les-deux-boites-noires-ont-cesse-d-enregistrer-quatre-minutes-avant-l-accident-qui-a-fait-179-morts_7007720.html
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@infosecdj Loss of power would do it. One of the procedures in an air incident which leaves the plane flyable is to pull the breaker after landing. Redundancy is a big thing in aviation so I'd expect multiple generators. Possibly one per engine.
But a loss of the wiring or a tripped breaker would cut power to the recorders.
If there was a complete loss of power (all engine stop) then the plane would be powered by the RAT which only gives enough power for basic instruments and controls.
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