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MH370: Bluefin-21 Underwater Vehicle Deployed, First Mission Finds No Debris

With no pings detected in the past six days from Flight MH370 black box, probably due to dead batteries, the multinational search team has d...

With no pings detected in the past six days from Flight MH370 black box, probably due to dead batteries, the multinational search team has deployed the U.S. Navy's Autonomous Underwater Vehicle Bluefin-21 which uses sonar to scan the ocean floor last night from the Australian Navy Ship ADV Ocean Shield.

The search area is based on the identified location where the ping transmission was last detected and verified to be from an electronic device.The pings already captured have allowed the search area to be narrowed to 500 square mile.

After completing around six hours of its first mission, Bluefin-21 exceeded its operating depth limit of 4,500 metres and its in built safety feature returned it to the surface.

The six hours of data gathered by unmanned submersible AUV on analysis found nothing related to Flight MH370, according to US Navy.

The AUV Bluefin-21 is planned to redeploy, later today if weather conditions permit. U.S. Navy said it will make adjustments to enable Bluefin-21 to search for longer.

The Bluefin-21 will be now deployed daily to locate the black box. It takes 24 hours to complete a full mission- 2 hours to descend to the botton level, 16 hours to search and photograph the seabed, 2 hours to ascend back to the surface and 4 hours to download the images.
Today, Australian Maritime Safety Authority said it will conduct a visual search in area totalling approximately 62,063 square kilometres using nine military aircraft, two civil aircraft and 11 ships. The centre of the search areas lies approximately 2,170 kilometres north west of Perth.

The mission to locate the debris and recover the black box is a herculean task, as of now any flight debris would be blanketed with silt, hampering the already poor underwater visibility.

With the pings stopped and the crash site yet to be located the chance to solve the mystery is fading fast.

Complexity of the task can be understood from the time taken to locate the black box of Air France Flight 447 which crashed over Atlantic Ocean in June 2009.
The AF447 black box was retrieved after two years, a couple of miles away from crash site, while the flight debris was located within 5 days of crash.

Malaysian Minister of Defence and Acting Minister of Transport Hishammuddin Hussein said they are still waiting verification of the oil slick found and collected yesterday, 5.5 kilometres away from the site where a ping was detected.

Malaysian Cabinet has also agreed to set up an International Investigation Team to specifically look into the MH370 incident.