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An aircraft suffers a serious in-flight upset but lands safely. The crew shuts down normally and the aircraft is towed to a stand, with electrical power maintained for over two hours.

What has most likely been lost?

  • A.Nothing, since both recorders stop at shutdown
  • B.The voice recording of the upset, overwritten on the loop
  • C.The flight data recording of the upset
  • D.Both recordings entirely

Answer: B

A two hour voice recorder overwrites anything older than two hours while it keeps running. The 25 hour data recording survives, which is why pulling the voice recorder breaker promptly is a specific post-incident action.

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