|Quoting BackSeater (Reply 55):|
Someone can turn off the DFDR?
But why? An essential piece of safety equipment that uses low power and is fused could create an electrical fire???
Next are we going to talk about spontaneous combustion?
Well, one reason given was that it's procedure to pull it after an incident so it doesn't record over something vital to understanding the incident. But, that is a bit irrelevant with the high-capacity data recorders.
We saw images of the 777 breaker panel earlier in the thread. Way earlier. There was not a breaker specifically labelled for either recorder, but it's possible one of them could be pulled to cut data or power to the recorders. Possible the breakers just weren't on the main panel.
Regardless, you'd want to be able to switch it off. It's not going to save lives to remove that functionality. As I've said before, if you're worried about the people up front sabotaging the mission, you may as well remove the yoke/sidestick and throttles too, because they can be used to crash a plane.