Flight recorders will eventually go to the United States...Failed to extract data

[Anchor]
Among the black boxes that will reveal the details of the plane disaster, the flight recorder ended up in the United States because it was difficult to extract information from the country.

As a result, it seems that it will take more time to investigate the background, so we will connect with reporters to find out. Reporter Lee Ji Eun!

Let's start with breaking news on the flight recorder!

[Reporter]
Yes, the flight recorder, whose connection connector was lost among the two black boxes, eventually failed to extract information from the domestic accident investigation committee and went to the United States.

The black box will go to the NTSB of the Transportation Safety Board in Washington, D.C., and specifically, when and how it will go has not yet been decided.

The flight recorder is a device that records all movements of the aircraft in the last 25 hours of the aircraft, and the connection connector is lost during the collision.

In this regard, the Ministry of Land, Infrastructure and Transport said that the flight recorder is specially manufactured and requires sophisticated technology when rejoining the joint if it falls off, so it cannot buy new parts and use them.

If this happens, it will be delayed for a considerable period of time than deciphering it in Korea.

Fortunately, another device, the voice recording device, has finished extracting information and turning it into a voice file today, and the accident investigation committee predicts that it will take about two days to complete the work.

Once the voice file is completed, radio conversations between pilots and controllers, captains and bookkeepers, and pilots and flight attendants are expected to be secured for the final two hours until the moment of the accident.

However, even if the contents are confirmed, it will not be easy to immediately announce them to the outside world, the Ministry of Land, Infrastructure and Transport said.

[Anchor]
By the way, is there a new fact about the fact that the runway length of Muan Airport was operated shorter than usual at the time of the accident?

[Reporter]
The Ministry of Land, Infrastructure and Transport has reaffirmed that the original 2,800-meter-long runway was only used at the time of the accident due to the construction of the Muan Airport runway expansion.

In the end, the distance that the aircraft glided into the fuselage after the final landing is shorter than the original calculation.

The point where the aircraft landed is not at the end of the runway, but if it is reduced by 300 meters from the total length, it is inferred that the runway distance is also shortened, causing the damage to be increased at a faster speed.

In addition, it was confirmed that the concrete mound of the local riser facility, which is blamed for increasing the damage to the accident, was further constructed two years ago, higher than when it opened in 2007.

The Ministry of Land, Infrastructure and Transport said it worked to cover additional concrete tops, but the reason for the additional top plate construction has not yet been revealed.

Questions were also asked at a briefing this afternoon about whether the Muan Airport localizer was in violation of regulations, but the Ministry of Land, Infrastructure and Transport still declined to give a definite answer, only explaining that it was looking at the International Civil Aviation Organization, ICAO and foreign cases.

However, they said they are currently investigating the material of navigation safety facilities installed at airports across the country.

I'm YTN's Lee Jieun.