(Image source from: Crashed fight QZ8501’s Black box found in Java Sea})

One of the two data recorders of the crashed AirAsia Indonesia's flight QZ8501 was found in Java Sea on Monday. The rescuers are still trying to find the plane’s second black box called Cockpit voice recorder.

The two data recorders are vital to evaluate what brought Flight 8501 down on Dec. 28, killing all 162 people on board. The crashed AirAsia Indonesia's flight QZ8501 was flying from Surabaya in Indonesia to Singapore and is lying 30m (98ft) below the surface of the Java Sea.

“Three Indonesian ships had detected signals from two different locations about 3.5km (2 miles) from where the aircraft's tail was discovered”, Co-ordinating Minister for Maritime Affairs Indroyono Soesilo said.

"The two are close to each other, just about 20 metres [apart],'" Mr Soesilo said. "Hopefully, they are the cockpit voice recorder and flight data recorder." He added.

The flight data recorder (FDR) is an electronic recording device of aircraft, used for the purpose of facilitating the investigation of aviation accidents and incidents.

The flight data recorder (FDR), preserves the recent history of the flight, through the recording of dozens of parameters, collected several times per second. The cockpit voice recorder (CVR), preserves the recent history of the sounds in the cockpit, including the conversation of the pilots. The two recorders will give a testimony, narrating the flight history with accuracy, to assist in an investigation in case of any mishaps.

This finding is a breakthrough in the study of the crashed flight which has taken away the lives of 162 people on board.

Update:

The crashed AirAsia plane's second black box (cockpit voice recorder) was retried by the divers from the bottom of the Java Sea. CVR will help the investigators what brought Flight 8501 down.

Transportation Ministry official Tonny Budiono, said that the trapped cockpit voice recorder had been freed from beneath the wing's heavy ruins early Tuesday from a depth of about 30 meters (100 feet), a day after the aircraft's flight data recorder was recovered.

 CVR will be flown to the capital of Indonesia, Jakarta, to be downloaded and analyzed with the other box. Since it records in a two-hour loop, all conversations between the captain and co-pilot during the 42-minute journey from Surabaya. 

AW: Kannamsai