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MH370 – Latest press release by ATSB

The following on MH370:


29th May 2014, 15:09   #10940 (permalink)
Join Date: Jan 2008
Location: South of where I’d like to be !
Age: 49
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Just releasedMedia Release
29 May 2014—pm

Yesterday afternoon, Bluefin-21 completed its last mission searching the remaining areas in the vicinity of the acoustic signals detected in early April by the Towed Pinger Locator deployed from ADV Ocean Shield, within its depth operating limits.
The data collected on yesterday’s mission has been analysed. As a result, the Joint Agency Coordination Centre can advise that no signs of aircraft debris have been found by the Autonomous Underwater Vehicle since it joined the search effort.
Since Bluefin-21 has been involved in the search, it has scoured over 850 square kilometres of the ocean floor looking for signs of the missing aircraft.
The Australian Transport Safety Bureau (ATSB) has advised that the search in the vicinity of the acoustic detections can now be considered complete and in its professional judgement, the area can now be discounted as the final resting place of MH370.
Ocean Shield departed the search area last night and is expected to arrive at Fleet Base West on Saturday.
As advised by the Australian Deputy Prime Minister on 5 May 2014, the search for MH370 continues and now involves three major stages:

  • reviewing all existing information and analysis to define a search zone of up to 60,000 square kilometres along the arc in the southern Indian Ocean;
  • conducting a bathymetric survey to map the sea floor in the defined search area; and
  • acquiring the specialist services required for a comprehensive search of the sea floor in that area.

The expert satellite working group continues to review and refine complex analyses of radar and satellite data and aircraft performance data to determine where the aircraft most likely entered the water. The findings of the review will be made public in due course.
The Chinese survey ship Zhu Kezhen has already begun conducting the bathymetric survey—or mapping of the ocean floor—of the areas provided by the ATSB. Its operations are being supported by the Chinese ship Haixun 01 and Malaysian vessel Bunga Mas 6 which are assisting with transporting the survey data to Fremantle weekly for further processing by Geoscience Australia. A contracted survey vessel will join the Zhu Kezhen in June.
The bathymetric survey is expected to take about three months. Knowing the seafloor terrain is crucial to enabling the subsequent underwater search.
The underwater search will aim to locate the aircraft and any evidence (such as aircraft debris and flight recorders) to assist with the Malaysian investigation of the disappearance of MH370.
It is anticipated that this component of the search will begin in August and take up to 12 months.
The ATSB will shortly release a formal request for tender to source the capability to undertake the underwater search. A single prime contractor will be chosen to bring together and manage the expertise, equipment and vessels to carry out the search.

Published data on MH370 as to likely arc of location

[from http://en.wikipedia.org/wiki/Malaysia_Airlines_Flight_370#Timeline_of_disappearance]:


Military Radar plot from Pulau Perak to last plot:


The radar traces for MH370:


The following is the ATSB version of the Imsarrat data:




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