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Bruce Lamon said...

What percentage of the search area associated with the underwater ping detections you wanted to search with Bluefin-21 was too deep?

Will you be consulting statisticians as in AF447? Will you search again in the areas Bluefin-21 searched?

Was any of the large debris found by satellite images in the original search area (circa March 18-24) ever retrieved?

Thank you.

June 4, 2014 01:12
Martin Dolan, Chief Commissioner (author) said...

There is no need to look further at those areas. We have completed a close search of the sea floor there and found no aircraft debris. We have discounted the area as a possible location for MH370.

The specialist satellite working group has all the capabilities necessary to undertake complex analyses of radar, satellite and aircraft performance data to determine the zone where the aircraft most likely entered the water. As a result, we have been able to determine a priority area for the underwater search for MH370.

We are currently finalising our acquisition of the equipment and personnel necessary to undertake the search of that area. This will include a team to manage the overall direction of the search and the priority allocation of search areas.


July 2, 2014 12:46
Brock McEwen said...

Does the ATSB still agree with its fuel analysis (per AMSA's March 28 release) which suggested MH370 crashed at roughly [21s, 105e] - or has it found a flaw?

If so, what was the flaw, and on what date was it found?

I ask because [21s, 105e] seems now to have been ruled out, and the mid-March sites ruled back in.

Many thanks.

June 12, 2014 03:23
Martin Dolan, Chief Commissioner (author) said...

In the early part of the search, there was the possibility of detecting the underwater locator beacons (or pingers) fitted to the aircraft’s flight recorders or finding floating wreckage. As the beacons have a limited duration of nominally 30 days, and to minimise the inaccuracies of the reverse-drift calculations, it was important that the search be commenced as soon as possible. This meant that the focus of the search moved over time as the analysis of the data was progressively refined.

At the time of the 28 March announcement, the specified search area was based on the best information we had. The search strategy group has now completed its analysis of the satellite handshakes and aircraft performance data (including fuel consumption) along with a range of other information. As a result, we have determined the area that offers the highest probability of finding the aircraft.

This is highly complex work that has required significant collaborative effort with international specialists. The revised search area has been announced publicly. You can find details of it, along with more information on how the search has been defined, in the report <em>‘MH370 – Definition of Underwater Search Areas’</em> online at www.atsb.gov.au/MH370.

July 2, 2014 12:55
Lilly Summer said...

So sad for the families. It is hard to fathom how in this day and age things like this can happen. Still, I commend the Australian government for the huge effort it has made (and continues to make).

June 18, 2014 06:48
Jason Hunter said...

I can't imagine how hard this has been for the families. Hard to also believe that something like this can happen in this day and age.

June 19, 2014 07:21
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