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-   -   Malaysian Airlines MH370 contact lost (https://www.pprune.org/rumours-news/535538-malaysian-airlines-mh370-contact-lost.html)

nitpicker330 12th Mar 2014 10:15

They are going to have to conduct and expanding search pattern out to about 2,500nm from KL in ALL directions......

Also get ALL Radar centers in that search area I describe ( both civil and Military ) to check their recorded displays for any strange targets flying through their airspace on that morning......

Big job.

Like I said pages back, you do realise this 777 may be at the bottom of the Indian Ocean 2,500 nm west of Indonesia...

SOPS 12th Mar 2014 10:16

Fatfish, I asked the same question a few posts ago. Either this muppet has no idea what ACARS is, or, it once again points to some sort of cover up.

The whole media conference was a farce. Late, basically said nothing, a whole lot of contradicting times of radar plots, and much smiling. Smiling and face saving might work locally people, but you are facing the world now.

D.Lamination 12th Mar 2014 10:20

Transport Minister at the press conference said all radar data from civil and military radar was being shared today with the US NTSB and the FAA. So we may get something independently confirmed tomorrow.
Meanwhile all you conspiracy theorists may want to check the movements of the M.V. Disco Volante and the whereabouts of one Emilo Largo. Maybe you could ask "our man in station H" ( Hong Kong)

Sporky 12th Mar 2014 10:21

Wow
 
Watching the news conference, it is blatantly clear the Malaysians are in disarray. I don't believe they are intentionally covering aspects up (if anything covering their own backside) it is just the fact they are unable to join the dots. We will never know now if this could have been a rescue operation.
Unfortunately it is too late, I hope to be wrong, but that media conference was farcical.

1stspotter 12th Mar 2014 10:21

I am wondering:
-how many unidentified plots on a radar were seen at the time MH370 went missing. Not much I guess.
-how much effort does it take to analyze the recording to learn alt, speed, heading of the plot
-how much other radars other than the Malaysia military could have picked up this plot on radar? Phuket?

so why does it take so much time to either confirm or rule out this unidentified plot was MH370?

awblain 12th Mar 2014 10:22

Ocean surveillance radar satellites should have seen a moving reflector over the ocean if the aircraft turned West and headed out to sea - but then so should Malaysian and Thai radars.

While their operators won't tell you that, I am sure that they could rule out a flight over the Indian Ocean if asked nicely.

The R.A.T. 12th Mar 2014 10:22

Can someone who has charts to do so, do a plot from there last non position prior to lost of transponder to a position 200 nm NW of Penang and see if it correlates with a time of 0214 allowing for wind!

StormyKnight 12th Mar 2014 10:26


Originally Posted by comcomtech (Post 8368781)
According to the news conference underway, five passengers were no-shows at the airport and replaced with four standby passengers, consequently no baggage was off-loaded. This contrasts with the statement a few days ago that five passengers who had checked in failed to board and their baggage was off-loaded.

Yes I think this is an example of quoting procedure instead of what actually happened. Similar in the news conference re the "was this aircraft checked for the know fuselage cracking issue", it was yes then clarified with yes that is the procedure, but I will need to check the records. If the speaker didn't have the time or confidence to clarify the answer, then the incorrect information is effectively given that yes this plane was definately checked.

Swedishflyingkiwi 12th Mar 2014 10:27

All this talk about unidentified Primary radar contact after LOS from the flight....
Surely a check of radar data from before contact was lost would indicate if there was another craft in the air adding to confusion or if the MH bird indeed went silent and changed course.
If there was an unidentified primary trace before the 'event' then the later unidentified signal could be discounted. If not, then that is indeed a track to follow.

Surely 12th Mar 2014 10:28

In the absence of any other confirmed data the most reasonable explanation is the aircraft did indeed go down where the transponder ceased transmitting.

harrryw 12th Mar 2014 10:30

THe press conference did say that RR were sending someone from the UK to talk to them about the readouts.

cynar 12th Mar 2014 10:30

bad questions! worse answers!
 
Just watched the press conference, of which only some was in English.

What is so incredibly frustrating is that the reporters don't know what to ask, and even when they do, the spokesmen parry and evade.

The real question (imo) is: what data are you using, where did it come from, and who is analyzing it?

ACARS -- were there ANY notifications during this flight? when? what did they say?

ENGINE -- were there ANY anomalous transmissions? when? and when did the data STOP being transmitted to Rolls Royce?

RADAR -- which radar, from which countries, exactly, indicated a "turn back"? are there recordings? did anyone, military or civilian, flag this at the time? are all radar data from all possible sources being cross-analyzed?

TRANSPONDER -- does the time the transponder stopped transmitting exactly match or otherwise the alleged "turn"? ditto regarding its synchronicity with ACARS and engine data.

We need a timeline of verified data, NOT vague answers like "we need to find the black box." Right, and until we do, we need to know which indicators are indicating where it might be!

The reporters, instead of asking about the core known data and its provenance, are asking second- or third-order questions that require speculation or conclusions that would have to be *based* on the data! And then the officials reply with defection and obtuseness!

No one has said: here's what we know, here's how we know it, here's how it's being analyzed and leveraged, here's who's in charge of each aspect of the investigation and of the SAR, and here's how countries are collaborating and sharing information and dividing responsibilities.

compressor stall 12th Mar 2014 10:31


In the absence of any other confirmed data the most reasonable explanation is the aircraft did indeed go down where the transponder ceased transmitting.
Totally agree.

Except there would not appear to be anything there.

1stspotter 12th Mar 2014 10:32

two interesting statements of todays press conference:

1. If FAA/NTSB can positively confirm the unidentified plot on primary radar is MH370 the radar track will be made public on Thursday. Statement of Minister of Defense

2. The plot was according to RMAF chief: unidentified plot on primary radar at FL295, 200nm NW of Penang, at 0215. "We're not saying it's #MH370

Waghi Warrior 12th Mar 2014 10:32

Who receives the ACARS information, the airline? When I heard the aircraft was missing, the first thing that come to mind was "What's was the ACARS information indicating at the time it disappeared? Hard to believe that a large modern airliner in this day and age can just disappear without trace.......

YPPH_Dave 12th Mar 2014 10:33

Enough
 
Okay boys and girls. Enough of the moderator bashing.

I've just had a reply from a great guy called Rob and he is dealing with a :mad: storm.

They're trying to trash the stuff that's being repeated over and over again, the stuff that's just plain crazy and trying to keep the posts on topic in succession.

So enough of this:


There`s been lots of mention of it- But you have to be quick to see it, because it just gets moderated by the all knowing moderators! they don`t want any talk of such things for some reason.

See how long these posts last?
Let's just stay sensible and stay on topic for once.

Octane 12th Mar 2014 10:35

That email..
 
appears to describe a credible eyewitness account of an 'event' seen in the night sky.
Does Michael McKay exist, is the email address valid?
Is the addressee valid? Phu Quoc has an airport and thus presumably a tower (phuquoctwr@gmail)?
Hopefully it's being investigated...

kristofera 12th Mar 2014 10:36


-how much other radars other than the Malaysia military could have picked up this plot on radar? Phuket?
Potentially worth for them to review tapes (if any) from Phuket, Had Yai, Surat Thani...

http://www.aisthai.aviation.go.th/we...d%20procedures[12].pdf

Surely 12th Mar 2014 10:37

Took 7 days to locate suspected wreckage of Adam air, and 10 days for floating debris.

kwh 12th Mar 2014 10:40


two interesting statements of todays press conference:

1. If FAA/NTSB can positively confirm the unidentified plot on primary radar is MH370 the radar track will be made public on Thursday. Statement of Minister of Defense

2. The plot was according to RMAF chief: unidentified plot on primary radar at FL295, 200nm NW of Penang, at 0215. "We're not saying it's #MH370"
What the NTSB/FAA cannot say is that they can have conversations with classified US military sources that the Malaysians simply cannot have directly, so the FAA can possibly mysteriously verify or discount certain data to a much higher degree of confidence than the Malaysians can, because some classified US system tracked the plane for all or part of its flight path...

1stspotter 12th Mar 2014 10:41

The Gmail letter sent by an New Zealand oil rig worker of the coast of Vietnam turned out the be false. The journalist (Florian Witulski @vaitor ) who posted a photo Tweeted:

BBC also reported about the letter but it turned out to be false information... nothing at the Ho Chi Minh coast

Volume 12th Mar 2014 10:56

Is there anybody un this forum who can shed some light on how modern radar equipment works? On the old fashoned CRT design you could simply adjust brightness to get rid of all the noise on the screen (birds etc.). How is sensitivity adjusted today? How is information filtered (i.e. are single returns filtered automatically by the software, because they are obviously noise, and are only repetitatve returns moving within a certain reasonable speed range shown)?
What exactly is recorded? Raw data? Displayed Data? Analyzed, filtered Data? Can we (the civilians...) run special analysis software on that data to scan through it for interesting details?

dye 12th Mar 2014 11:01

Checked FR24 at 07 MAR 2014 - 18:10 UTC (08 MAR 2014 02:10 local time)

FR24 shows SQ68 FL300 SIN - BCN B777W approx 200 miles north-west of Penang.

OleOle 12th Mar 2014 11:06

Military aircraft operating between Diego Garcia and Senkaku (or other islands in the South China Sea) would probably transit exactly through the area where the unidentified radar contact was plotted. Especially if Vietnamese an Indonesian airspace is to be avoided.

Air to air refueling might also happen in this region. Some military a/c is designed to have very small radar cross sections, so it might not be easy to identify plots of those a/c. The radar plots may well be totally unrelated to MH370. Support by FAA/NTSB makes sense.

GlueBall 12th Mar 2014 11:06


How is it possible that sophisticated air force like RMAF failed to detect the plane for over 1 hour and flag it as possible incursion?
...maybe for similar reasons why during the Cold War days a Cessna 172 could be successfully flown by a teenager, and landed on Red Square, en route from Helsinki to Moscow. :{

igs942 12th Mar 2014 11:06

Life Raft Provisions
 
Generally, how long are the lift raft provisions designed to sustain life for? Could this still be a rescue operation if the airplane was ditched successfully or has it been too long now?

rodondo4 12th Mar 2014 11:08

Wed 12th Mar Press Conference
 
The best PC thus far, they have clarified a few things. I think the pressure put on them to improve the PC has worked slightly, ideally would be nice if they could use the screen behind them to do a little demonstration of the sequence of events so every one is on the same page.

0121 Last radio contact
0130 Last ATC Radar contact
- then onto Military Radar, turn west to west peninsular -
0215 Military Radar loses the unidentified aircraft 200nm NW of Penang at an altitude of 29,500ft (FL295)

They confirmed the 5 passengers did not travel on the plane, but was then replaced by 5 on standby.

1. Would FL295 show the plane was under control by someone (hopefully pilot) for separations from traffic?

2. Which 5 would be on the Manifest? with 239 passengers surely they had space for the standby's anyway?

3. 0240hrs is now null and void?

Surely 12th Mar 2014 11:15

See dyes post re:sq68 in area at 0210

I have my doubts mh370 was there an hour after initial contact lost, but we will find out eventually.

awblain 12th Mar 2014 11:17

Radars can give elevation (not directly height), return time lag (not directly distance) and frequency shift (not directly line-of-sight speed), if they can form a 2D beam on the sky from a phased-array, broadcast a series of beams at different stacked elevations, or do an old WWII-Freya scan with a dish.

Analysis of this information, and the measured motion on the sky between scans then gives 3-D velocity, distance and height, correcting for refraction, Earth curvature and trigonometric coupling of height and distance to elevation.

Standard rotating antennas with dipole array transmitters, like the old iconic Heathrow radar on the concrete pillar by the tunnel entrance on the terminal island, don't do elevation, and rely on transponder broadcasts.

fortuneferal 12th Mar 2014 11:17

Isn't there a radar on top of Penang Hill? It's military and would serve Butterworth? Surely it would have picked up anything coming that way.

Neogen 12th Mar 2014 11:20


0215 Military Radar loses the unidentified aircraft 200nm NW of Penang at an altitude of 29,500ft (FL295)
Did they mention anything about the direction/heading?

PaleBlueDot 12th Mar 2014 11:21

The core of confusion is probably that radar data is buried in a lot of noise. That would be the case if the aircraft was flying low, or if it was approaching the limit of radar range, or if the radar is not in a perfect health. They probably have only disconnected groups of dots. If that is the case, they would have difficult time being sure about continuity of any unidentified dots, especially in the presence of many other signals and general electronic noise in the area. The only sure way would be to compare data, possibly even raw radar data of all neighboring counties. However, that would reveal real, practical and not theoretical limits of their radar detection capabilities, and information about early warning capabilities is absolutely crucial for any military. Most likely, that is core problem now, they do not know how to safely cooperate at this extremely sensitive and highly technical level.

Hempy 12th Mar 2014 11:21

Beginning to change my mind about this,

Massive electrical failure at FIR boundary, with associated control issues (I'm not speculating on cause). Pilots attempt to set course for home on compass bearing, possibly maintaining level flight until it was no longer available..

Red Chilli 12th Mar 2014 11:23

Out of ATC/primary/SSR radar coverage or not, any Mayday call will almost undoubtedly have been picked up by any nearby commercial aircraft which will have been monitoring 121.5

Thus it would appear no Mayday call was transmitted, which suggests catastrophic failure or deliberate action as the only plausible options (IMO).

Tfor2 12th Mar 2014 11:24

2 Things
 
1. It was a hi-jack (transponder turned off, no Mayday), and the plane was not under the control of the pilots. It flew to wherever was demanded, and something happened thereafter causing it to crash, probably from an effort to regain control (as with United 93 during events of 9/11). So it could be anywhere. An eye-witness will eventually come forward.

2. The most fearsome worry to come out of this is how come an aircraft can invade national territory without military or civil or satellite detection? This leaves a hole in the defense systems of all countries.

nitpicker330 12th Mar 2014 11:26

Latest blog from Ben Sandilands.

MH370 Day Five yields a new last possible radar fix | Plane Talking

MH370 Day Five yields a new last possible radar fix
BEN SANDILANDS | MAR 12, 2014 10:14PM | EMAIL | PRINT
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After running more than two and a half hours late the day five media briefing in Kuala Lumpur has come up with a new last possible radar trace for missing Malaysia Airlines flight MH370.

It was picked up by defence radar at 2.15 am on Saturday morning, 200 nautical miles or 360 kilometres NW of Penang as an unidentified aircraft at 29,500 feet according to the chief of the Royal Malaysia Air Force, Rodzali Daud.

This is almost precisely where Mr Rodzali earlier today denied saying to the Malaysia Media that this was where defence radar saw the missing airliner after it was tracked flying across the Malaysia peninsula to the northern approach to the main Strait of Malacca.

In other words, in this very chaotic media conference, the air force chief confirmed what he denied he said yesterday, although he did not go into as much detail as was reported in the national media.

This time he said “I am not saying it was MH370.” And he also gave the radar trace a new time, 2.15 am local time, not 2.40 am, which was coincidentally or otherwise the time of last contact with the airliner originally given by Malaysia Airlines before it began a process of changing times and event descriptions on a regular and confusing basis.

It was made clear, through the clutter of the media conference, that this radar sighting inspired the original extension of the search area from the Gulf of Thailand to include the western side of the Malaysia peninsula, and today’s further extension much deeper into the Andaman Sea.

MH370 was a 777-200 service carrying 239 passenger and crew on a regular Kuala Lumpur to Beijing service. To recap, it left KL at 12.40 am, it disappeared as a commercial radar trace at 1.22 am close to the area where such radar visibility to the Malaysia air traffic control system drops off, and was never observed as entering Vietnam controlled air space on a path intended to cross that country to the South China Sea and continue past Hong Kong toward its destination.

There are reports of emergency frequency radio contact with MH370 up to 1.30 am, which haven’t been convincingly ruled out, and which was originally the revised time Malaysia Airlines said it had its last contact with the airliner in the same breath that it said it lost the radar trace at 1.22 am.

It is this constant stumbling over what should be precise and unambiguous markers for the progress of MH370 which have helped undermine the credibility of the airline, which seems to be rewriting the basic information every time it opens its mouth.

This Wednesday night’s delayed media conference was a hair tearer for the technical aviation media because for its brief duration the panel reversed the usual definition of primary and secondary radar, referring to the primary radar used by Malaysia defence as being secondary in purpose, and the secondary commercial radar as performing the primary role. Which is both right sounding but wrong.

The commercial radar uses transponders on airliners to identify them by flight number to air traffic controllers. The defence radars primarily records flying objects without using transponder generated identification for commercial flights.

The acting transport minister and minister of defence Hishammuddin Hussein said that apart from looking further into the Andaman Sea, the search would also maintain a dual focus on the South China Sea between Vietnam and Hong Kong.

The air force chief Rodzali Daud said the agencies from other countries were helping Malaysia reconcile the radar traces picked up by defence radar with those recorded by the commercial air traffic control radars as well as enable a better understanding as to what the military radar saw near Pulau Perak, as he didn’t say it did to the Malaysian media yesterday.

If it wasn’t an airliner looking like an airliner at 29,500 feet in Malaysia airspace that was seen by the defence radar, at a point where it should also have been easily discoverable by normal civilian ATC radar that in itself on a ‘normal’ day would be a puzzle that the authorities would presumably try to resolve without delay.

What is so frustrating in the lack of detail given by the Malaysian authorities is their failure to address such obvious questions. It would have known precisely what by way of scheduled airliners was flying over western Malaysia on Saturday morning. It doesn’t need military radar to answer that question.

These evasions or omissions in the briefing last night make it overwhelmingly likely that the original reports attributed to Rodzali Daud were correct, and that there is a cover up of important detail being attempted by the authorities, with less and less success with every day.

If they are in the Andaman or South China Seas, the traces of those who were on board MH370 are rapidly vanishing, and the dispersal of floating items of wreckage will make the location of the crash site and the black box flight data and voice recorders, which would have sunk, that much more difficult to find.

Barking_Mad 12th Mar 2014 11:28

Hi. This was posted earlier:


0121 Last radio contact
0130 Last ATC Radar contact
- then onto Military Radar, turn west to west peninsular -
0215 Military Radar loses the unidentified aircraft 200nm NW of Penang at an altitude of 29,500ft (FL295)
At 29,500ft, wouldn't conventional 'airport' radar have picked the plane up too?

22/04 12th Mar 2014 11:30

I think we need to wait until the radar trace is published now-

But I suspect we will eventually find the aircraft not far from the last position where it appeared to be ops normal.

Anything else just seems too far-fetched to me.

awblain 12th Mar 2014 11:31

Bob…
If there were survivors, they'd be in rafts with beacons, and their location would have been know within the time it took to broadcast to and from satellites 10,000km up.

davionics 12th Mar 2014 11:32

SATCOM and Telemetry Data?
 
Concerning Data:

Why has nobody confirmed/announced if there were any transmissions sent via SATCOM? Seems to be the elephant in the room - the media currently appears to have an unhealthy tunneled obsession with; radar, ads-b, voice comms, gps, black boxes, etc.

Surely ACARS and engine telemetry data could shine a good dose of light on this incredibly sad fiasco.

Many aircraft today also have Panasonic Avionics high-bandwidth eXconnect GCS (Global Communications Suite) to augment SATCOM.


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