According to the request of the Ethiopian government, two "black boxes" of the crashed airliner ET302 were sent to the French Civil Aviation Safety Investigation and Analysis Agency (BEA) on the 14th, and will be subject to accident analysis and investigation. Meanwhile, people familiar with the situation disclosed a recording in the cockpit before ET302 crash.
A spokesman for BEA confirmed on the 14th that the agency had accepted two "black boxes" of ET302, namely, the flight data recorder and cockpit voice recorder of the crashed passenger plane, CNN said on the 15th. "The truth of the crash is recorded in the instrument," the spokesman said. The relevant technical analysis work will be officially carried out on the 15th. However, before the official publication of the communication records of the crashed flights, anonymous "informants" provided the New York Times with recordings of the crash.
"Disconnect, disconnect, request to return!" From ET302 Captain Gertahue's tone, you can hear the obvious panic. "Disconnection" is a flight term that reminds the receiver of priority information in a noisy and busy communication environment, often because the sender of the command has encountered an emergency. One minute after ET302 took off, the captain reported "flight control problems" to the ground, and his tone was relatively flat. Two minutes after ET302 took off, the flight had just climbed to a safe height, and there was an unusual ups and downs bump and acceleration. When the abnormality was detected, the ground console immediately contacted two other landing flights, demanding that they maintain their flight altitude for landing and allow ET302 to return, but a minute later, the flight disappeared from radar and lost contact with the ground permanently.
So far, the cause of ET302 crash is not clear. BEA also did not disclose the time required for the technical analysis of the "black box". Some people in the industry believe that any inference about the cause of the accident is not mature enough.