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Malaysia Airlines flight MH370-Updates and Discussion

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    #1352
    Highflyer13
    Closed Accounts Posts: 954 ✭✭✭Highflyer13


    Its fair to assume that the Malaysian authorities are far from transparent.


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    #1353
    sopretty
    Closed Accounts Posts: 3,009 ✭✭✭sopretty


    Tigerandahalf wrote: »
    Jack you are not listening. The authorities stated that no ACARS data was sent.

    Perhaps because no known mechanical issues were detected?


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    #1354
    Tigerandahalf
    Registered Users Posts: 7,814 ✭✭✭Tigerandahalf


    Growler!!! wrote: »
    I think tiger has you block or something as you have explained a number of thing which he hasn't grasped. As you explained earlier, an airplane can still be flown by the autopilot but the pilot is telling the computer where to go ie HDG mode.

    So essentially the pilots would have to be conscious. The plane is assisted and to make turns the pilot would have had to enter data into it to make those turns.


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    #1355
    SpaceTime
    Closed Accounts Posts: 9,088 ✭✭✭SpaceTime


    Highflyer13 wrote: »
    Its fair to assume that the Malaysian authorities are far from transparent.

    There's probably a bit of national face saving going on too as national pride will be quite badly hurt by this if it turns out to be a maintenance, operations or security issue.


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    #1356
    cml387
    Registered Users Posts: 8,420 ✭✭✭cml387


    ACARS is used for lots of things apart form mechanical information.
    Position reports, PAX information , weather, etc etc.


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    #1357
    Tigerandahalf
    Registered Users Posts: 7,814 ✭✭✭Tigerandahalf


    sopretty wrote: »
    Perhaps because no known mechanical issues were detected?

    Well according to one of the more knowledgeable people on here the authorities have stated that no ACARS data was sent after last secondary radar contact.

    I watched a press conference and they stated that they were no anomalies.

    So is that still up for discussion?


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    #1358
    Jack1985
    Registered Users Posts: 2,500 ✭✭✭Jack1985


    Tigerandahalf wrote: »
    So essentially the pilots would have to be conscious. The plane is assisted and to make turns the pilot would have had to enter data into it to make those turns.

    Yes and what makes you believe something still could have happened, I'm explaining theories and you're shooting off then as if they're fact, they are not. PLEASE tiger, can you google information first and then if still troubled post it.


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    #1359
    SpaceTime
    Closed Accounts Posts: 9,088 ✭✭✭SpaceTime


    Other than a situation where the aircraft broke up, is there any way you could have a total electrical failure?
    It would seem quite unlikely to me as I'd assume systems are duplicated with multiple back up systems and battery back up for essential systems like radio, navigation, control surfaces etc.


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    #1360
    Growler!!!
    Registered Users Posts: 1,980 ✭✭✭Growler!!!


    Tigerandahalf wrote: »
    So essentially the pilots would have to be conscious. The plane is assisted and to make turns the pilot would have had to enter data into it to make those turns.

    The usual set up is the aircraft is flown in LNAV mode. This follows the flight plan in the GPS/GNSS/FMC. The pilots then monitor that the autopilot is following the route.

    If the autopilot is then put into HDG mode the pilot simply selects the new heading and the autopilot follows this selection.

    So yes a manual input must be made.

    But - has the new information about the aircraft been confirmed?


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    #1361
    Tigerandahalf
    Registered Users Posts: 7,814 ✭✭✭Tigerandahalf


    Jack1985 wrote: »
    Yes and what makes you believe something still could have happened, I'm explaining theories and you're shooting off then as if they're fact, they are not. PLEASE tiger, can you google information first and then if still troubled post it.

    Jack I don't know what your issue is. I'm putting across possibilities and you are shouting me down with you BOLD statements. You have put across the possibility of a fire.


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    #1362
    Jack1985
    Registered Users Posts: 2,500 ✭✭✭Jack1985


    cml387 wrote: »
    ACARS is used for lots of things apart form mechanical information.
    Position reports, PAX information , weather, etc etc.

    The position reports is not correct, final pax information is sent from ACARS to to the operations side of the airline, weather i.e. winds aloft is transmitted to ACARS from operations and into the FMS via an ''Uplink''.

    Here's ACARS job in a summary - OAT, altitude, speed, EPR, N1, N2, EGT, F/F, oil pressure and temp - Maintenance interpret that.
    Tigerandahalf wrote: »
    Jack I don't know what your issue is. I'm putting across possibilities and you are shouting me down with you BOLD statements. You have put across the possibility of a fire.

    I do not mean to come across like that, but you are ignoring the posts of others here and not researching things that would improve your knowledge like I'm asking you to do, anything I'm actually telling you, you are ignoring and because of that not understanding the situation at hand and/or looking to much into certain aspects of aircraft systems.


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    #1363
    eatmyshorts
    Closed Accounts Posts: 821 ✭✭✭eatmyshorts


    I was going to post a synopsis of the 777 electrical architecture and is redundancy..... But this thread has gone so of the wall I don't think there's much point.

    So here's something more in tune with the discussion....
    "Aircraft beamed up to Neptune by alien master race, says Commander of Ant People" reports the Daily Mirror.


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    #1364
    SpaceTime
    Closed Accounts Posts: 9,088 ✭✭✭SpaceTime


    eatmyshorts wrote: »
    I was going to post a synopsis of the 777 electrical architecture and is redundancy..... But this thread has gone so of the wall I don't think there's much point.

    So here's something more in tune with the discussion....
    "Aircraft beamed up to Neptune by alien master race, says Commander of Ant People" reports the Daily Mirror.

    Post it, you might bring the thread back to sanity again.

    I'm pretty sure from what I've read that all aircraft design for commercial aviation is about redundancy and more redundancy.


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    #1365
    irishmover
    Registered Users Posts: 4,746 ✭✭✭irishmover


    If the Angle of Attack sensors failed at the same time when the plane is levelled off at cruise altitude, would it be possible for the plane to stall even though it was at cruise altitude and not climbing whilst in auto pilot ofcourse.

    It's an unlikely theory more a question about whether Angle of Attack sensors could cause a cruising 777 to stall.


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    #1366
    h3000
    Registered Users Posts: 6,467 ✭✭✭h3000


    SpaceTime wrote: »
    Post it, you might bring the thread back to sanity again.

    I'm pretty sure from what I've read that all aircraft design for commercial aviation is about redundancy and more redundancy.

    +1 lots of us still here interested in facts and wanting to learn :)

    0118 999 881 999 119 725 3



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    #1367
    Tigerandahalf
    Registered Users Posts: 7,814 ✭✭✭Tigerandahalf


    From Mirror.........

    "Malaysia Airlines has issued a clarification over five passengers who checked in but did not board flight MH370.

    The airline said that there were four passengers who had booked on the flight but did not show up for check-in.

    The airline said in a statement: "Malaysia Airlines wishes to clarify that there were four (4) passengers who had valid booking to travel on flight MH370, 8 March 2014, but did not show up to check-in for the flight.

    "As such, the issue of off-loading unaccompanied baggage did not arise, as the said four passengers did not check in for the flight. Hence, the above claim is untrue."


    ............"


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    #1368
    Calina
    Registered Users Posts: 8,219 ✭✭✭Calina


    eatmyshorts wrote: »
    I was going to post a synopsis of the 777 electrical architecture and is redundancy..... But this thread has gone so of the wall I don't think there's much point.

    I would be grateful if you did post that synopsis although I also have to say I understand your latter view as well.


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    #1369
    Jack1985
    Registered Users Posts: 2,500 ✭✭✭Jack1985


    eatmyshorts I pm'd you yesterday in relation to the discussion of information related to the 777 as you are a pilot who flies such aircraft, any reason as to why you couldn't reply to the information?

    Regards. :)


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    #1370
    Growler!!!
    Registered Users Posts: 1,980 ✭✭✭Growler!!!


    eatmyshorts wrote: »
    I was going to post a synopsis of the 777 electrical architecture and is redundancy

    That would be quite helpful. No point explaining my own system as it's not a Boeing product.


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    #1371
    Growler!!!
    Registered Users Posts: 1,980 ✭✭✭Growler!!!


    Jack1985 wrote: »
    eatmyshorts I pm'd you yesterday in relation to the discussion of information related to the 777 as you are a pilot who flies such aircraft, any reason as to why you couldn't reply to the information?

    Regards. :)


    He may not wish to overly identify himself/herself.


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    #1372
    fits
    Registered Users Posts: 13,460 ✭✭✭✭fits


    Again from pprune. Unverified

    Rumours has it that...


    Quote:
    The US Embassy in Beijing claims that USAF Base at U-Tapao in Thailand monitored a distress call from Malaysia Airlines MH370 at 2.43 am. The pilot said that the cabin was starting to break apart and he was making a forced landing. Malaysia Airlines were notified.

    According to Chinese news reports. Translated provided by: JeezCanada comments on China Times reports that "the U.S. Embassy said the 2:43 U.S. military bases stationed in Thailand U-Tapao SOS signal was listening to some of Malaysia Airlines Flight MH370 emergency call, said the aircraft cabin facing disint

    EXTREMELY UNCONFIRMED RUMOUR!


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    #1373
    aliveandkicking
    Registered Users Posts: 961 ✭✭✭aliveandkicking


    eatmyshorts wrote: »
    I was going to post a synopsis of the 777 electrical architecture and is redundancy..... But this thread has gone so of the wall I don't think there's much point.

    So here's something more in tune with the discussion....
    "Aircraft beamed up to Neptune by alien master race, says Commander of Ant People" reports the Daily Mirror.

    Would love you to post it. I suspect the silent majority reading this thread rather than posting rubbish would also love to read it.


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    #1374
    sopretty
    Closed Accounts Posts: 3,009 ✭✭✭sopretty


    Can someone explain something to me, as I seem to have gotten lost somewhere along this discussion.

    From what I'm understanding, is this remotely along the lines of the details that are currently out there? I won't be insulted if I have totally and utterly miscomprehended everything that I have read and heard, so don't hold back if I have the whole thing assways.

    1. Aircraft takes off, heading north, as per usual.
    2. At some point, the plane falls off SECONDARY radar, and vanishes. We'll call this Position A.
    3. Aircraft is picked up some time later by PRIMARY radar, quite a fair distance west of Position A, in a position we will now call Position B
    4. We're now trying to figure out how the aircraft got from A to B, undetected, and without the (dare I mention it?) ......... ACARS thingymebob transmitting any information in the transit?


    As I said, I might well be as lost as the plane is at this stage, but I'm trying to get my head around the whole thing!!!


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    #1375
    Jack1985
    Registered Users Posts: 2,500 ✭✭✭Jack1985


    Growler!!! wrote: »
    He may not wish to overly identify himself/herself.

    Oh I know I stated he didn't have to I was just asking about systems, which I don't believe is overlying Identify yourself, if he doesn't wish to respond thats fine as well. :)


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    #1376
    fr336
    Registered Users Posts: 10,179 ✭✭✭✭fr336


    fits wrote: »
    Again from pprune. Unverified

    Rumours has it that...


    Quote:
    The US Embassy in Beijing claims that USAF Base at U-Tapao in Thailand monitored a distress call from Malaysia Airlines MH370 at 2.43 am. The pilot said that the cabin was starting to break apart and he was making a forced landing. Malaysia Airlines were notified.

    According to Chinese news reports. Translated provided by: JeezCanada comments on China Times reports that "the U.S. Embassy said the 2:43 U.S. military bases stationed in Thailand U-Tapao SOS signal was listening to some of Malaysia Airlines Flight MH370 emergency call, said the aircraft cabin facing disint

    EXTREMELY UNCONFIRMED RUMOUR!

    Why would it take so long for this to come to public attention?


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    #1377
    fits
    Registered Users Posts: 13,460 ✭✭✭✭fits


    Don't know. Its probably not true. Aren't us searchers concentrated in Malacca strait?


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    #1378
    fits
    Registered Users Posts: 13,460 ✭✭✭✭fits


    I don't know if that latest report makes sense. Apologies if it is false.


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    #1379
    Jack1985
    Registered Users Posts: 2,500 ✭✭✭Jack1985


    Just on Sky there one of the passengers on stolen passports who was headed to Frankfurt via Beijing, there Mother was waiting for them in Frankfurt - So definitely those two passengers with stolen passports can all but be now confirmed as just asylum seekers.


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    #1380
    fr336
    Registered Users Posts: 10,179 ✭✭✭✭fr336


    fits wrote: »
    I don't know if that latest report makes sense. Apologies if it is false.

    No it's interesting, and not that impossible.


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    #1381
    kona
    Registered Users Posts: 7,525 ✭✭✭kona


    irishmover wrote: »
    If the Angle of Attack sensors failed at the same time when the plane is levelled off at cruise altitude, would it be possible for the plane to stall even though it was at cruise altitude and not climbing whilst in auto pilot ofcourse.

    It's an unlikely theory more a question about whether Angle of Attack sensors could cause a cruising 777 to stall.

    A 320 crashed just before af447 due to ice forming jamming the aoa. Caused by using pressurised water to clean the aircraft . Aircraft just dived.


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