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Malaysia Airlines Flight Goes Missing En Route to China - Flight MH370

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  • Mac Attack
    CBS evening news reported (their time 25 Mar ~19:10) that the [US Navy's] Towed Pinger Locator 25 is being dispatched and would not be operational at the search site until 15 April..... can this be true? Anyone know why it takes them so long when everyone has so much time to prepare for this action? I read somewhere that the TPL25 equipment is always packed and ready-for-dispatch!

    Would there be other TPL 25s being setup for quicker search?

    BTW, other news reports also indicate that the TPL 25 (if there is only one in existance) is currently "being prepared/dispatched". Only Malaysia's New Strait Times reported that the TLP 25 is already in Perth.... I guess the confusion continues....
    Last edited by Mac Attack; 2014-03-26, 08:43.

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  • voyager10


    25 MARCH 2014, 5:30PM

    Introductory statement

    As the search for MH370 continues, we remain focused on narrowing the search area.
    With such strong co-operation from our international partners, the challenge is no longer diplomatic. It is now primarily technical and logistical.

    Because the scale of the investigation is now much more complex, the release of technical and logistical information will be handled differently. As you have seen today, this means that Malaysia Airlines will take the lead in communicating with the families.

    As the search area has narrowed, new challenges have arisen, including managing resources in a remote search and rescue effort. We continue to work closely with our friends and partners as we seek to marshal more specific resources in support of the operations in that area.

    New data

    Last night the Prime Minister announced that according to new analysis of satellite data, Inmarsat and UK Air Accidents Investigation Branch (AAIB) have concluded that flight MH370 ended in the southern Indian Ocean.

    Today I will provide further details of how the data was analysed, as provided to us the UK AAIB.

    This information is quite technical in nature. So although I will give you as much information as I can, I will not be in a position to answer questions about this data analysis today.

    However, we will accept written questions which will be answered as soon as possible. We will be providing this information as a press release at the end of this press conference. This is the information provided to us by the AAIB.

    Further details

    In recent days Inmarsat developed a second innovative technique which considers the velocity of the aircraft relative to the satellite. Depending on this relative movement, the frequency received and transmitted will differ from its normal value, in much the same way that the sound of a passing car changes as it approaches and passes by. This is called the Doppler effect.

    The Inmarsat technique analyses the difference between the frequency that the ground station expects to receive and one that is actually measured. This difference is the result of the Doppler effect and is known as the Burst Frequency Offset.

    The Burst Frequency Offset changes depending on the location of the aircraft on an arc of possible positions, its direction of travel, and its speed. In order to establish confidence in its theory, Inmarsat checked its predictions using information obtained from six other B777 aircraft flying on the same day in various directions. There was good agreement.

    While on the ground at Kuala Lumpur airport, and during the early stage of the flight, MH370 transmitted several messages. At this stage the location of the aircraft and the satellite were known, so it was possible to calculate system characteristics for the aircraft, satellite, and ground station.
    During the flight the ground station logged the transmitted and received pulse frequencies at each handshake. Knowing the system characteristics and position of the satellite it was possible, considering aircraft performance, to determine where on each arc the calculated burst frequency offset fit best.

    The analysis showed poor correlation with the Northern corridor, but good correlation with the Southern corridor, and depending on the ground speed of the aircraft it was then possible to estimate positions at 0011 UTC, at which the last complete handshake took place. I must emphasise that this is not the final position of the aircraft.

    There is evidence of a partial handshake between the aircraft and ground station at 0019 UTC. At this time this transmission is not understood and is subject to further ongoing work.

    No response was received from the aircraft at 0115 UTC, when the ground earth station sent the next log on / log off message. This indicates that the aircraft was no longer logged on to the network.

    Therefore, sometime between 0011 UTC and 0115 UTC the aircraft was no longer able to communicate with the ground station. This is consistent with the maximum endurance of the aircraft.

    This analysis by Inmarsat forms the basis for further study to attempt to determine the final position of the aircraft. Accordingly, the Malaysian investigation has set up an international working group, comprising agencies with expertise in satellite communications and aircraft performance, to take this work forward.

    Technical background

    The new analysis I have described above was convincing enough for the AAIB to brief the Prime Minister that MH370 flew along the southern corridor, and that its last position was in the middle of the Indian Ocean, west of Perth. Within a few hours, the families had been informed, and the Prime Minister announced the new development to the world.

    As the Prime Minister stated, this type of analysis has never been done in an investigation of this sort.

    There remains more work to be done, and we are grateful to Inmarsat, AAIB and the international investigations team, who are continuing to work with the Malaysian authorities. This is a developing situation, and as soon as we know more, we will share it.

    Operational update

    As a result of this new data analysis, the search and rescue operation in the northern corridor has been called off. We have also stopped the search and rescue operation in the northern part of the southern corridor, close to Indonesia.
    All search efforts are now focused in the southern part of the southern corridor, in an area covering some 469,407 square nautical miles, as against the 2.24 million square nautical miles which we announced on 18th March.

    We are currently working to further narrow down the search area, using the four methods I mentioned previously: gathering information from satellite surveillance, analysis of surveillance radar data, increasing air and surface assets, and increasing the number of technical and subject matter experts.

    On the assets deployed, 2 Korean aircraft left Subang airport for Perth this morning, to help in the multinational search operation.

    No flights from Perth to the search area took place today, due to bad weather.

    6 Chinese ships are currently in the search area. They are expected to arrive within the vicinity of MH370’s last known position by tomorrow morning. These ships include the ice breaker ‘Xue Long’.

    HMAS Success is also currently in the search area.

    The American Towed Pinger Locater – an instrument that can help find a black box - is currently en route to Perth and will arrive tomorrow. The system will be fitted onto the Australian ship Ocean Shield, which is due to dock in Perth on 28th March. The Ocean Shield, fitted with the Towed Pinger Locater, is due to arrive in the search area on 5 April.

    Concluding remarks

    The new analysis shared with the investigation by Inmarsat and the AAIB has focused our efforts on the southern part of the southern corridor.

    Although yesterday’s news was incredibly hard for the family members, as our Prime Minister said, it was released out of a commitment to openness and respect for the relatives, two principles which have guided the investigation.


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  • Oblivian
    Originally posted by bhavlobhuro
    Malaysian budget carrier Malindo Air catches fire at 2,000m above ground
    Likewise, I've already pointed out. These are not relevant. If you must post them, add them to the incidents reporting area

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  • Oblivian
    Originally posted by F-EGLF1 View Post
    Please for all our sakes ban or moderate this twit, we don't need this type of trash.
    I've been trying clearly message is not being heard.

    Voyager10. For the last time, Stop posting youtube videos of further ongoing conspiracy theories with next to no relation to the current search

    Last warning.

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  • F-EGLF1
    Originally posted by voyager10
    This vdo explains again,.. how it could very well be a zombie/ghost plane and its possibilities,..*****
    Please for all our sakes ban or moderate this twit, we don't need this type of trash.

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  • Alex Smart
    I just hope that this was not the plan.
    I have just looked at the flight path for Joberg to Perth.
    Looks very close to the possible end of track of 370 ?
    Could it be that there was a plan and if there was one - was to have a mid air collision in the middle of nowhere ?
    Has anyone looked at times of these flights and heights etc etc could they have been on a collision course ?
    I hope not but ask the possibility of such an event.
    1553483_740971732614509_298214666_o.pngJobto Perth.jpg

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  • Oblivian
    Originally posted by Cambridge
    sorry mikes last post where ? theres 131 pages in this thread no doubt ive missed stuff sorry
    You have managed to make post since he made it.. (which I am about to delete too)

    And this goes for anyone else too, for the sanity of everyone - If you are not already, use the 'view new posts' feature that every forum software tends to have (little blue arrows in the case of the FR24 theme), it takes you to the last unread message since your visit. ALA you CANNOT miss anything and keep double posting information (like Voyager10 seems to manage to) Instead of jumping straight to the last page and refusing to look back


    The size of the thread cannot be used as an excuse for existing contributors, nor people simply refusing to check what information is already been posted.
    Last edited by Oblivian; 2014-03-26, 04:28.

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  • Exadios
    Originally posted by MIT EE View Post
    Inmarsat, confirms what peterhr, has been advocating. The cost to track the position of an aircraft via a satellite link would be nominal.

    "Technology which could have allowed authorities to continue tracking Malaysian Airlines flight 370 is already available and costs only $1 per hour, according to the satellite firm which helped identify the flight’s path."

    I saw the interview and Chris was emphatic about the fact that this technology could be implemented in the time it takes to mandate it. He said it was disgraceful that this hasn't been already been implemented.

    The fictional aviator Wing Commander Bigglesworth (Capt. W.E. Johns) once said, "Life is for the Living"; the best memorial the victims of MH370 can have is an IMMEDIATE mandate that this technology be implemented forthwith!! No more dilly dallying, no more excuses!
    But the problem is how would this new equipment have helped in this case? If the equipment supplying ACARS data to the Sat. Terminal failed and the transponder failed what is it about this equipment that would allow it to continue to work?

    The real question I'm asking is what level of extra redundancy does this new device provide?

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  • Allison
    An article in the Sydney Morning Herald - Search for MH370: Suspected debris lies above undersea volcanoes

    Robin Beaman, from James Cook University, said so little of the southern Indian Ocean sea floor, including the search zone, had been mapped in detail that any attempt to retrieve wreckage would require extensive 3D mapping, possibly by ships with multibeam echo sounders.

    Leave a comment:

  • grandbanks
    Originally posted by Mike View Post
    Please stop posting conspiracy theories and links to stupid "DAHBOO77" YouTube videos. If you have any conspiracy theories please find another forum to post your bullshit. This thread is from now and on ONLY available for posting facts about the crash of MH370 in South Indian Sea and about the ongoing search operation.
    Thank you....

    To all those who start their post with, "i haven't read all the posts" ...... Please note the above....

    Leave a comment:

  • iazoniccc
    Gulfstream 5 (GLF5) and Bombardier Global 6000 (GLEX) both heading out towards search area.

    EDIT: Now Gulfstream G650 (GLF6) also appears to be heading out. Hopefully a productive day ahead for the searchers.
    Last edited by iazoniccc; 2014-03-25, 22:34.

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  • peterhr
    Lets not guess, we can only hope the find out what happened - they will keep searching.

    Sent from my GT-P5110 using Tapatalk

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  • EDLV7
    I haven't read all pages of this thread.

    In my opinion something really bad happend to this flight. If you read news about this flight there have been 7 hours of ghost flight.

    Ok, the aircraft changed it's direction, I think that was the last "man-made" input to the aircraft. Somehow the aircraft lost all
    his systems. The engines run even with of total loss of (electric) power due to little alternators powering the ECU (Airbus:FADEC) and
    fuel is a least feed by gravity. The engines run until fuel runs to zero.

    I think there was a little fire / explosion / cableburn in the avionics compartment. The crew run through the checklists and decided
    to turn to the next airport to land asap. That were the final keytrokes in the flight managment system. Maybe there was a lot of smoke
    in the cockpit and they didn't manage it to fight the fire/smoke. They were already dead but at least one computer did his job
    oan held th plane airborne until feul was zero.

    Or second variation: electric/electronic problem. Flightcontrols were lost, communications were lost, even minor important
    equipment failed like ACARS, ADS-B, transponder. All equipment is protected by circiut breakers. Maybe the crew tried to isolate the
    problem to get back some systems to run, but it didn't work to get control over the aircraft. The only thing what they could
    do is to wait until the fuel runs out.

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  • trailfinder
    I have read the whole thread and not seen the following asked.

    MH370 was assumed to be flying at 30000+ feet and 450 Knots.

    If it was on autopilot at the time the fuel ran out, what would be the behaviour of the aircraft until it hit the water? Does the AP try to maintain straight and level flight, and altitude/speed?

    I assume that the engines spool down and electric power also diminishes.

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  • voyager10
    MH370: How British satellite company Inmarsat tracked down missing,...

    Social-News Photos,..


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