Originally Posted by
Centaurus
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Remember the Silk Air MI 185 Boeing 737 suicide crash? The investigation found that the two cockpit FDR circuit breakers had been pulled just prior the aircraft being pushed over into its dive. That meant no info after that was available to investigators. The CVR circuit breaker had also been pulled a few minutes earlier which is why the only CVR info that was available was the period before the CB were actuated by someone. If someone in the 777 went to the trouble of switching off the transponder and ACARS, chances are the same person may have tried to hide more vital information by disabling the CVR and FDR by some means (circuit breakers in the 777?)
If they are accessible and they are confirmed as pulled it virtually confirms this was not a fire/accident/decompression scenario especially if done prior to or during the initial deviation from flight path.
Assuming recorder CBs are accessible can any 777 pilot tell us how long with practice it would it take the pilot (LH seat) to pull all comms, CVR & FDR breakers , 10sec, 30sec ? and out of interest could it be done as quickly from RH seat.