Update on MH370 Drift Modeling Enigma

Last month I wrote, in a post entitled “Nowhere Left to Look for MH370,” that recently refined drift models produced by Australia’s CSIRO contradicts both their own premise (that the plane crashed on the 7th arc between 34S and 36S) and an alternative idea presented by intependent researchers (that the plane crashed near 30S).

I’ve only just become aware that CSIRO director David Griffin weighed in on the matter a few weeks ago in a letter to Victor Iannello, which Victor published on his blog. He essentially confirmed the points I raised.

He wrote, for instance, that:

As you correctly pointed out, a 30S crash site would, according to our model, have resulted in debris washing up on Madagascan and Tanzanian shores a full year earlier than was observed. That is a discrepancy that is hard to set aside.

He also wrote that:

The other factor against 30S that we find very hard to discount is that 30S is right in the middle of the zone targeted most heavily by the surface search in 2014. This is the “other evidence” that Richard overlooked. Please see Section 4 of our Dec report, and Fig 4.2 of the April report.

Griffin also defends, rather weakly in my estimation, the idea that the early arrival of the “Roy” piece in South Africa does not contradict his preferred 34s-36S crash point. However, I don’t think this really matters, since there is so much other compelling evidence against it.

The conundrum, therefore, becomes even more impenetrable than before: the evidence indicates that the plane did not go into either of these “hot spots.” And it indicates even more strongly that it did not go anywhere else in the southern Indian Ocean.

The way to solve conundrums is to open up your thinking and to check for implicit assumptions that my be incorrect. In this case, the obvious follow-up question is: is it possible, given the data in hand, that the plane could have gone somewhere else?

Australian officials remain puzzlingly unwillingly to acknowledge the issue.

Nowhere Left to Look for MH370

Image pilfered from Victor Iannello

The suspension of the search for MH370 has been frustrating for many who care deeply about finding the plane. They feel that solving the mystery is essential not just for the emotional well-being of the passengers’ relatives but to protect the safety of the flying public. One group of MH370 relatives has gone so far as to raise money to fund a search on their own.

Assuming one were to raise the money, though, the question would then become: where to look?

Turns out, it’s not so easy to say.

Officially, of course, Australia says it knows where the plane most likely went. As I wrote in my last post, they’ve released a CSIRO report that uses drift modeling and other techniques to argue that the only plausible endpoint is on the 7th arc between 34 and 36 degrees south.

But as Victor Iannello points out in a recent post on his blog, there are some holes in the CSIRO’s logic. For one thing, according to their drift modeling, no-windage debris that enters the water at 35S will reach the shores of Western Australia in fairly significant quantities, but will not reach the South African coast by December 2015, when the real stuff started to turn up there. (You can play around with the kmz files that the CSIRO has made available online; say what you want about the Australians, they have been fabulous about explaining their work and making gobs of data available to the public.)

There’s another problem: the area between 34S and 36S has been searched out to 10 nm and beyond. I am very skeptical that a plane last spotted accelerating downward at 0.6 g, and already descending at 15,000 fpm, could possibly travel anywhere near as much as 10 nm. If anyone has produced flight sim runs that accomplish this, I would very much like to see it. (The IG said as much in their September 2014 paper.)

I’d add my own third reason to suspect that no wreckage would be found in the ATSB’s new search zone: it doesn’t play well with the DSTG’s Bayesian analysis of the BTO data, which is why it was excluded from the 120,000 sq km seabed search as it was ultimately defined.

So if not the ATSB’s new area, then where? South of 39.5S is ruled out because the plane couldn’t fly that far. 36S to 39.5S is ruled out because it’s been searched. 34S to 36S is ruled out for the reasons discussed above. And north of 34S is ruled out because the debris would have been spotted during the surface search.

This is where we stand, three years after the disappearance: with lots of different kinds of clues delimiting where the plane could have gone, it’s hard to make a plausible case that MH370 went anywhere.

UPDATE: Elle Hunt has written a story in the Guardian about Victor’s criticism of the ATSB’s new search zone. Unfortunately it takes seriously the idea that 30S is a plausible alternative. In addition to the ATSB’s assertion that the debris here would have been spotted during the surface search phase, there are the additional problems that:

  • Low-windage debris would have reached the coast of southern Africa in early 2015, and the flaperon would have arrived in Réunion late 2014. Both are way too early.
  • This endpoint was calculated as having a zero percent probability in the DSTG Bayesian analysis of the Inmarsat data.

Australian Scientists Release Meaty MH370 Report

The Australian Transport Safety Board (ATSB), the organization overseeing the now-suspended ocean search for MH370, has just released a meaty drift-modeling report put together by the Commonwealth Scientific and Industrial Research Organisation (CSIRO), a scientific research arm of the Australian government, entitled “The search for MH370 and ocean surface drift – Part II.” It provides a fascinating level of detail into the research previously detailed by the CSIRO. Most media write-ups of the report emphasize the CSIRO’s own top-line assessment of the work’s significance, namely that “The only thing that our recent work changes is our confidence in the accuracy of the estimated location, which is within the new search area identified and recommended by the First Principles Review.” However, I think it would be more accurate to say that this newly detailed view of the CSIRO’s research points up what a baffling picture the combined evidence presents. To wit:

FLOAT TESTS. Previously, the ATSB had released details of float tests involving replica flaperons. It turns out that these in fact did not float very much like the flaperon retrieved from Réunion and tested in a flotation tank in France. To obtain better data, the CSIRO scientists obtained an actual 777 flaperon and cut it down to the exact (within 2 cm) shape of the real flaperon. (Neat video here shows exactly what part of the trailing edge came away; pity that no analysis has been done to explain what kind of impact might have produced this result.) The cut-down flaperon turned out to float very much like the original, unlike the replicas, as you can see in the image above.

This cut-down flaperon was put out to sea and its drifting characteristics measured. This data was then entered into CSIRO’s drift models. It turned out that the trajectories starting from the previously identified high-probability search area near 35 degrees south were now more likely to impact Réunion Island. Thus, CSIRO scientists were heartened that their previous conclusions were reinforced.

However, I see some other interesting aspects of this work that have not received much attention. For instance, check out these photographs of the cut-down flaperon’s trailing edges:

Hello! The majority of the trailing edge is above the waterline, regardless of the flaperon’s orientation. We already knew this, based on images of the French flotation tests, but the new view is clearer than ever. This is simply impossible to reconcile with the heavy incrustation of the Réunion flaperon’s trailing edge. Previously released videos have suggested that in windy conditions, this part of the flaperon could be periodically immersed, but videos attached to the new report show that in light wind they will stay high and dry for extended periods. Lepas barnacles cannot survive and grow under these conditions.

Intriguingly, the report mentions that four replica flaperons that had been outfitted with telemetry were allowed to float in the open sea for an extended amount of time, but no mention was made of what biofouling they experienced. I would be very curious to know.

DRIFT MODELING. Using the new flaperon drift data, CSIRO asked: presuming an entry point at any given location along the seventh arc, how long would it take a piece of debris to reach Réunion, the coast of Africa, and the coast of Australia? Their results are shown below.

The red-and-white vertical line in the central image shows the arrival time at Réunion. It appears that this is roughly consistent with a start point anywhere between 30S and 40S. Further north, and it would have arrived earlier; further south, and it wouldn’t have gotten there at all. So that’s all good.

Note, however, that debris starting in that range should have arrived in Africa even earlier. In fact, debris only started turning up about five months later. So that’s a bit of a puzzle.

Note also that debris entering the water at south of about 36S should have washed up in Western Australia. Intriguingly, debris that entered around 34S should have also hit Australia. Thus, it seems to CSIRO that there is a fairly narrow window of entry points around 35S that is consistent with both the presence of debris on Réunion and the absence of debris in Australia.

IMPACT OF SURFACE SEARCH. Confoundingly, the document also includes a graphic showing the estimated probability that debris from any given entry point would have been spotted during the extensive surface search conducted by ships and airplanes in the months immediately after the disappearance. This is a bit of a shocker: CSIRO asserts that if the plane impacted north of 33S, there is essentially a 100 percent chance it would have been spotted.

Taken together, these newly released bits of information explain why CSIRO feels reinforced confidence that the plane likely hit the water in a fairly narrow band near 35 degrees south. A problem, as the report acknowledges, is that this area has already been searched up to about 20 nautical miles inside and outside the 7th arc. Presuming that the plane was in a nearly vertical dive at the time of the 7th arc, it is hard to see how it is possible that it came to rest further than this.

The report’s executive summary suggests that it is physically possible that the aircraft could have reached some small distance beyond this:

The new search area, near 35°S, comprises thin strips either side of the previously-searched strip close to the 7th arc. If the aircraft is not found there, then the rest of the search area is still likely to contain the plane. The available evidence suggests that all other regions are unlikely.

I find it very interesting that the CSIRO is saying that, in essence, there is no other plausible end point that fits with the data in hand. The aircraft must be here, or else…

To my mind, the high-and-dry trailing edge of the flaperon suggests that “or else” should receive some decent consideration.

PS: A reasonable question to ask is: Why wasn’t this area searched? The short answer is that it was, but only partially. The area was within the initial search zone, such that “between latitudes 32.8°S and 36°S along the 7th arc the area has been searched to widths which vary from ~12 to 17 NM to the east and ~10 to 21 NM to the west of the 7th arc,” as reported in the First Principles Review.

Eventually the DSTG refined their analysis and concluded that a Bayesian analysis of possible flight paths suggested that an endpoint north of 35.5S was unlikely, so subsequent efforts were concentrated on an area south of 36S.

The First Principles Review also reports that ATSB investigators concluded that the wreckage could not reasonably lie more than 25 nautical miles from the 7th arc.

The distance from 34S to 36S is 350 kilometers. If we say that the area remaining to be searched inside the arc is 10 nm, or 18.5 km, wide, and that the area outside the arc is about the same, then the total area remaining to be searched is roughly 13,000 square kilometers, or about 1/10th of the area searched so far.

But, as I’ve written before, the ATSB realized this quite a while before they ran out of time and money for the seabed search, and they made no effort to look there (except a little bit at the very end).

I personally wonder how at downward-plunging plane could get even 10 nm from the 7th arc. But it’s worth bearing in mind that what the Inmarsat analyis tells us, and what the seabed search tells us, and what the drift analysis tells us, don’t get along very well with one another.

 

First MH17 Perpetrator Identified

On the morning of July 17, 2014, Ukrainian intelligence recorded a cell phone conversation between a military intelligence officer with the code name “Khmuryi and a fighter with the Russian-backed separatists forces, code name “Buryat,” who was in command of a flat-bed truck carrying a Buk antiaircraft missile launcher. The Ukrainians subsequently released audio and a transcript:

BURYAT: Where should we load this beauty, Nikolayevich?

KHMURYI: Which one? That one?

BURYAT: Yes, yes, the one that I brought. I am already in Donetsk.

KHMURYI: Is this the one that I am thinking about? The one ‘B’… ‘M’?

BURYAT: Yes, yes, yes. ‘Buk,’ ‘Buk.’

KHMURYI: Is it on a hauler?

BURYAT. Yes, it is on this one. We need to unload it somewhere and hide it.

KHMURYI: Is it with a crew?

BURYAT: Yes, with the crew.

KHMURYI: Don’t hide it anywhere, it will now go over there.

As extensive reporting by Bellingcat has subsequently made clear, the missile launcher had been sent over from Russia’s 53rd Anti-Aircraft Missile Brigade the night before. Transfered to a field near the village of Snizhne, it sat for several hours, then picked off MH17. That night it was shipped back across the border.

Last week, Bellingcat released a report identifying “Khmuryi” as Sergey Nikolaevich Dubinsky, a major general in the GRU special forces. His photograph is above. This is the first time an individual participant in the shoot-down of MH17 has been identified by name.

To this day, it remains unclear exactly what Russia sought to achieve by destroying MH17. But the circumstances are coming ever more sharply into focus. Within minutes of destroying the civilian airliner, Russia launched a disinformation campaign that succeeded in misleading a large majority of Western observers into believing that the 777 had been shot down by accident by incompetent militiamen who had gotten their hands on a Buk by accident. On CNN, where I was still under contract at the time, this line was parroted reflexively. It was lamentable to me, and remains lamentable, that this “common sense” view was hewed to so narrowly. This kind of lock-step groupthink among the media is part of the reason that Russia’s misinformation campaign since 2014 has been so successful.

Bellingcat’s efforts, however, offer some grounds for optimism. To paraphrase Lincoln, you can fool all of the people some of the time, but you can’t fool all of the people all of the time. Dogged research by Elliot Higgins and his crew, paralleled by the investigative efforts of Dutch investigators, are slowly bringing to light those responsible for this war crime.

MH370 is a more difficult case, but the fundamentals are similar. A plane comes to grief; a flurry of implausible theories swirl. The public and the media alike are thoroughly confused. But quietly, step by step, the facts are laid bare. It’s only a matter of time before, like Dubinsky, the names and faces of the perpetrators are revealed to the public.

UPDATE: Bellingcat has published further insights into Dubinsky’s role based on new information that has surfaced as a result of the report discussed here.

Further Clarity on MH370 Flight Path Modeling

Over the last three years, Inmarsat, the ATSB, and the DSTG have been commendably proactive in explaining the mathematical process by which they deduced MH370’s most likely endpoint from the Inmarsat data. The most recent installment, “The Use of Burst Frequency Offsets in the Search for MH370″ by Ian D. Holland, continues that tradition by shedding light specifically on the BFO analysis. All told, it reinforces the impression that the team had good reasons for thinking that the plane would be found in the 120,000 sq km search box. This, of course, only deepens the riddle of why it wasn’t.

Holland’s paper gets into some pretty dense math but a couple of points stand out. On page 6 we read:

Since the mean of the BFOs from the 18:39- 18:41Z call attempt are in broad agreement with the linear trend observed in the BFOs from 19:41Z to 00:11Z (for which the BTOs themselves were consistent with straight and level flight [1]), this supports the finding in [1] that there were most- likely no major turns after the unanswered call attempt (see ([1], Fig. 10.5)).

This is a familiar idea: that the BFO value at 18:40 indicates that the plane, if flying level, was already heading south at that time, and that the FMT had already occurred. This was long accepted as being almost certainly true. But as Victor Iannello recently pointed out on his newly started blog, if the plane turned before 18:40, then its wreckage would have been found in the SIO search area. Therefore, he proposes an alternative that originally seemed less likely: that the plane was in a steady, 2900 feet per minute descent.

Why would whoever was flying MH370 want to descend in such a fashion? Iannello proposes that they might have been setting up for a landing at Car Nicobar airstrip in the Andaman Islands. Perhaps the plane descended for a while — at this rate, getting down from 35,000 o 20,000 would take about five minutes — and then the pilot changed his mind and flew south into the SIO instead.

However, as I’ve pointed out before, if the plane flew straight after 18:40 then the geometry of the BTO rings itself suggests what speed the plane was flying at. The reason is that the 19:40 and 20:40 rings are quite close together, and so there is a small angular distance between, say, a 400 knot path and a 500 knot path. This small angular distance means that the intersection of these paths with the 22:40 and 00:11 rings are spaced at very similar distances. The upshot is that the BTO rings themselves imply a speed of about 480 knots. This is not dissimilar to the speed seen on the radar track, about 500 knots.

To fly this fast without burning all its fuel before 0:11, 9M-MRO must necessarily have been flying at or close to normal cruise altitude.

What Iannello is effectively proposing, then, is that MH370 flew fast and high, then descended, then climbed and flew fast and high again. It is not easy to see what such a dive-and-climb might have accomplished. That is not to say it didn’t happen. But it does run counter to the behavior that the plane otherwise exhibited, which seems to have been geared toward getting where it was going rather quickly.

Another thing I found interesting about the paper was the amount of attention given to the question of the anomalous BFO value at 18:25:27. Apparently a body within the official search effort called the “MH370 Flight Path Reconstruction Group – SATCOM Subgroup” produced a whole paper on this topic; it has not been released to the public but Holland refers to it no less than 7 times, as sk999 has pointed out. We’ve known for some time that the ATSB was unable to find a reason for this value. This struck me as suspicious and I wondered if it might be evidence that the SDU has been tampered with. In this paper we learn for the first time that a study of 20 previous 9M-MRO logins found that one similar anomalous value. (Previous reports have stated that login requests in mid-flight are extremely rare, so we can assume these occurred during normal power-up sequences on the ground.) Unfortunately, Holland doesn’t say anything about what the circumstances were. The implication however is that this kind of anomaly can arise innocently.

Finally, Holland also touches upon the issue of the rate of acceleration implied by the final two BFO data points: 0.68 g. Again, we’ve discussed this before on this blog, but since Holland revisits it I think it bears repeating. This is an extremely high rate of acceleration — two-thirds of what the plane would experience if it was free-falling in a vacuum. With no engines to hasten its descent, the plane must have been pointed nearly vertically down. With its velocity increasing at such a rate, the plane must have impacted the surface quite soon after, therefore it couldn’t be very far from the 7th arc.

My overall impression upon reading this report was: Wow, this is extremely solid work. The DSTG’s analysis of the Inmarsat provides a very compelling case for where the plane went in the southern Indian Ocean. I wouldn’t want to bet against this, I thought.

Then I remembered that their predicted area has already been searched and nothing was found.

 

 

MH370: Triumph of the Weird

Well, here we are in cold-case land, scratching our heads. Some $150 million has been spent and no plane. Where does that leave us?

For one thing, with radically altered probabilities of what might have happened.

Imagine that we dial the clock back to August, 2015. You’re Warren Truss and this the story that your data is telling you:

Based on this default story, you’ve concluded that there’s a 97 percent chance that the aircraft hit the ocean within a 120,000 sq km box. What about the other 3 percent? Let’s imagine there’s a 2 percent chance that it’s somewhere else in the SIO, and a small but finite chance — let’s say 1 percent — that, for unkonwn and uncalculable reasons, the plane didn’t go into the SIO at all.

Time goes by. You search out all but the 1 percent of the search box that your sonar equipment can’t image (e.g. seabed crevasses), throw up your hands, and call it off.

So this is how things now stand: Of the orginal 100 percent, 96 percent has been scanned and ruled out. Here’s how remaining probabilities now stack up:

Of course, these are all very rough numbers. The point being, no matter how you slice it, the scenario that was once nearly a dead certainty (flying into the SIO search box) is now less than an even bet, and outcomes that once barely merited an asterisk are now not only possible but probable.

The most probable category, according to this rough calculation, would be scenarios of the second variety. But if the data is valid, how could the default story be wrong? How could the plane have wound up somewhere in the SIO outside the search box? To square that circle, you have to choose one of the assumptions above and bend it. For instance, one might imagine that the 18:40 BFO value was not caused by the plane flying south, but by a plane that descended–perhaps, say, for a descent into Car Nicobar–and then changed plans and flew instead to, say, Antarctica. Or maybe the plane didn’t fly straight and fast, but flew slowly in a curve toward the Cocos Islands, creating a pattern of ping rings that only happened to look similar to those generated by a plane flying fast and straight.

Such eventualities are so unlikely that, back when the search box was being drawn, it was easy to simply discard them. But now that the most reasonable options are off the table, this very geographically dispersed (and hence impractical to search) population of possible endpoints collectively adds up to “very likely.”

Then again, it’s also now significantly more plausible that the plane didn’t go south at all, or that if it did it wound up in the search box but then fell into an unscannable crevasse.

Whatever happened to MH370, it wasn’t the default story told by the data, but rather something that in the summer of 2015 would have been discarded as hopelessly implausible.

Were MH370 Searchers Unlucky, or Duped?

Yesterday, officials responsible for locating missing Malaysia Airlines Flight 370 announced that their two-year, $150 million search has come to an end. Having searched an area the size of Pennsylvania and three miles deep, they’ve found no trace of the plane.

The effort’s dismal conclusion stands in marked contrast to the optimism that officials displayed throughout earlier phases of the search. In August, 2015, Australia’s deputy prime minister Warren Truss declared, “The experts are telling us that there is a 97% possibility that it is in [the designated search] area.”

So why did the search come up empty? Did investigators get unlucky, and the plane happened to wind up in the unsearched 3 percent? Or did something more nefarious occur?

To sort it all out, we need to go back to why officials thought they knew where the plane went.

Early on the morning of March 8, 2014, MH370 took off from Kuala Lumpur en route to Beijing. Forty minutes passed the last navigational waypoint in Malaysian airspace. Six seconds after that it went electronically dark. In the brief gap between air-control zones, when no one was officially keeping an eye on it, the plane pulled a U-turn, crossed back through Malaysian airspace, and then vanished from military radar screens.

At that point the plane was completely invisible. Its hijackers could have flown it anywhere in the world without fear of discovery. But lo and behold, three minutes later a piece of equipment called the Satellite Data Unit, or SDU, rebooted and initiated a log-on with an Inmarsat communications satellite orbiting high overhead. An SDU reboot is not something that can happen accidentally, or that airline captains generally know how to do, or that indeed there would be any logical reason for anyone to carry out. Yet somehow it happened. Over the course of the next six hours, the SDU sent seven automated signals before going silent for good. Later, Inmarsat scientists poring over the data made a remarkable discovery: due to an unusual combination of peculiarities, a signal could be teased from this data that indicated where the plane went.

With much hard work, search officials were able to wring from the data quite a detailed picture of what must have happened. Soon after the SDU reboot, the plane turned south, flew fast and straight until in ran out of fuel, then dived into the sea. Using this information, officials were able to generate a probabilistic “heat map” of where the plane most likely ended up. The subsequent seabed search began under unprecedented circumstances. Never before had a plane been declared lost, and its location subsequently deduced, on the basis of mathematics alone.

Now, obviously, we know that that effort was doomed. The plane is not where the models said it would most likely be. Indeed, I would go further than that. Based on the signal data, aircraft performance parameters, and the available autopilot modes, there is a finite range of places where the plane could plausibly have fetched up. Search vessels have now scanned all of them. If the data is good, and the analysis is good, the plane should have been found.

I am convinced that the analysis is good. And the data? It seems to me that the scientists who defined the search area overlooked a step that even the greenest rookie of a criminal investigator would not have missed. They failed to ascertain whether the data could have been tampered with.

I’ve asked both Inmarsat scientists and the Australian mathematicians who defined the search area how they knew that the satellite communications system hadn’t been tampered with. Both teams told me that they worked with the data they were given. Neither viewed it as their job to question the soundness of their evidence.

This strikes me as a major oversight, since the very same peculiar set of coincidences that made it possible to tease a signal from the Inmarsat data also make it possible that a sophisticated hijacker could have entered the plane’s electronics bay (which lies beneath an unsecured hatch at the front of the business class cabin) and altered the data fed to the Satellite Data Unit.

A vulnerability existed.

The only question is: Was it exploited? If it was, then the plane did not fly south over the ocean, but north toward land. For search officials, this possibility was erased when a piece of aircraft debris washed ashore on Réunion Island in July of 2015. Subsequently, more pieces turned up elsewhere in the western Indian Ocean.

However, as with the satellite data, officials have failed to explore the provenance of the debris. If they did, they would have noticed some striking inconsistencies. Most notably, the Réunion debris was coated completely in goose barnacles, a species that grows only immersed in the water. When officials tested the debris in a flotation tank, they noted that it floated half out of the water. There’s no way barnacles could grow on the exposed areas—a conundrum officials have been unable to reconcile. The only conclusion I can reach is that the piece did not arrive on Réunion by natural means, a suspicion reinforced by a chemical analysis of one of the barnacles by Australian scientist Patrick DeDeckker, who found that the barnacle grew in water temperatures that no naturally drifting piece of debris would have encountered.

If the plane didn’t go south, then where did it go? Not all the Inmarsat data, it turns out, was susceptible to spoofing. From the portion that wasn’t, it’s able to generate a narrow band of possible flight paths; they all terminate in Kazakhstan, a close ally of Russia. Intriguingly, three ethnic Russians were aboard MH370, including one who was sitting mere feet from the electronics bay hatch. Four and a half months later, a mobile launcher from a Russian anti-aircraft unit shot down another Malaysia Airlines 777-200ER, MH17. A year after that, the majority of pieces of debris wind up being discovered by a man who had spent the last three decades intimately involved with Russia.

Whether or not the Russians are responsible for MH370, the failure of the seabed search and the inconsistencies in the aircraft debris should undermine complacency about the official narrative. When MH370 disappeared, it possessed an obscure vulnerability that left its Inmarsat data open to tampering. Having spent $150 million and two years on a fruitless investigation, search officials have an obligation to investigate whether or not that vulnerability was exploited.

Zaharie Shah’s Secret Psych Evaluation

zahrie-before-flight

Yesterday Twitter user @nihonmama released the first two folders from the secret Malaysian police report into MH370. Some parts relating to Zaharie’s flight simulator had been released earlier, but the bulk of this material is coming into public view for the first time. Here is “Folder 1: Pilot” and here is “Folder 2: Co-pilot.”

I was particularly interested in the section containing the psychological evaluation of the pilot, Zaharie Ahmad Shah, found on page 111. As it is in Malaysian, I had to type it into Google Translate to make any sense of it. As I have absolutely no understanding of Malaysian I am copying it and pasting it below without any changes. Corrections welcome!

 

Hon. Datuk Mazlan bin Mansor
Deputy Director (Intelligence / Operations),
CID,
Royal Malaysian Police,
Bukit Aman,
50560, Kuala Lumpur

Hon. Dato ‘

Expertise help the Ministry of Health in Malysia Investigation Missing MH370: The study “Psychosocial and Behavioural Pattern” crew MH370.

Letter from Hon. Dato ‘no. ref: JSJ KPN (PR) 35/3 dated July 3, 2014 and the terms of reference of the assessment panel “behavioral pattern and psychosocial crew of MH370 is referenced.

2. The sub-committee meeting between Kiraja Malaysia Police (PDRM) and KementerianKesihatan (MOH) was held in Room Mesyusarat, Hospital Bahagia Ulu Kinta, Perak on 7 July 2014. The purpose of this meeting was to obtain an independent report (independent) The above assessment.

3. Here is the panel sub-committee has been established.

[The letter lists three officials from the Ministry of Health and six officials from the Royal Malaysian Police]

4. Assessment conducted on flight MH370 pilot Captain Zaharia Ahmad Shah and co-pilot, en. Fariq Ab. Hamid, have been guided by reference listed:

i. Quoting witnesses related conversations pilot, Captain Zaharia Ahmad Shah, total of 40 person which includes 5 members, 20 co-workers, friends WeChat 9 and 6 public witnesses.
ii. Quoting witnesses related conversations pilot, Mr. Fariq Ab. Hamid total of 9 people including 3 members of the family, his girlfriend, and five colleagues.
iii. Quotes clips CCTV video at KLIA’s movement, patterns of behavior and expression on the face (facial expression) Zaharie co-pilot En. Fariq before their flight dated 07.03.2014.
iv. Quotes CCTV video clips KLIA Zaharie on 26.02.2014 before his flight to Denpasar, Indonesia and on 03.03.2014 before his flight to Melbourne, Australia.
v. Medical reports Zaharie.

5. Based on these reference sources, we have studied the background Zaharie including education, personality and coping (coping style), relationship with spouse, children, family members, friends and colleagues, including his interests and hobbies. Attention has also been given to her relationship with her maid. His physical health problems are investigated including asthma and diseases of the spine, which caused him to have to take treatment drugs painkillers “analgesics.” Religious and political tendencies he observed.

6. We also reviewed the background of the co-pilot Mr. Fariq including education, personality, relationships with family members, friends and colleagues.

7. Highlights are as follows:

7.1 In the field of career, Zaharie is an experienced pilot and a competent and respected by peers.

7.2 Available Zaharie not share the same interests with his family members. However, the difference in interest is acceptable. His family was also not reported any change of pattern of behavior (behavioral pattern) before his flight was on 07/03/2014.

7.3 Information from friends and colleagues Zaharie show that he was a friendly, warm and jokes. They are also not reported any change of pattern of behavior before his flight was on 03/07/2014.

7.4 Problems spinal pain he was a fairly chronic physical problems rather than a new stressor.

7.5 Review of comparisons based recording video clips CCTV KLIA on 26.02.2014, 03.03.2014 and 03.07.2014, found him tending to smoke before her flight and movements of his time smoking was similar in all three videos. At KLIA CCTV video clip on 03/07/2014, Zaharie not show any sign of anxiety or depression.

Finally, we have not found, any changes in terms of psychological, social and behavioral patterns Zaharie Ahman Shah before his flight was on 03/07/2014. We also did not find any demolition of psychological, social and behavioral patterns of co-pilot En. Fariq Ab Hamid before his flight was on 03/07/2014.

Thank you.

“CARING, TEAMWORK PROFESSIONALISM AND WE ARE WORKING CULTURE”

I who am following orders,

Dr. HJH. RABA’IAH BINTI MOHD. sALLEH
MMC NO: 25878
Director & Consultant Psychiatry (Forensic)
Special Grade “C”
Hospital Bahagia Ulu Kinta
Perak Darul Ridzuan

I find this to be a truly remarkable document. We’ve been hearing rumors that the investigation found no evidence that suggested Zaharie could have a psychological predilection for suicide/mass murder, but here it is at last in black and white, with details such as the fact that his pattern of smoking before a flight was unchanged before MH370. It is hard to imagine that anyone contemplating his own imminent death could exhibit such sang froid.

Indeed, I don’t think there has ever been a case where someone who is known to have carried out such an act had such an outward appearance of being balanced and well-adjusted. Andreas Lubitz, for example, had experienced years of psychological upheaval trouble, at one point temporarily washing out from Lufthansa’s flight training program, before destroying Germanwings 9525.

In my estimation this psych evaluation must be regarded as powerful evidence that Zaharie did not hijack MH370.

After the jump, the letter in the original Malay, as re-typed by me from the report.

Continue reading Zaharie Shah’s Secret Psych Evaluation

Is the New ATSB Search Area Sound?

dstg-endpoint-probability-by-latitude

The above graph is taken from the DSTG book “Bayesian Methods in the Search for MH370, ” page 90. It shows the probability distribution of MH370’s endpoint in the southern Indian Ocean based on analysis of the different autopilot modes available to whoever was in charge of the plane during its final six hours. It was published earlier this year and so represents contemporary understanding of these issues. As you can see, the DSTG estimated that the probability that the plane hit the 7th arc north of 34 degrees south longitude is effectively zero.

I interviewed Neil Gordon, lead author of the paper, on August 11. At that time, he told me that experts within the official search had already determined that the BFO values at 0:19 indicated that the plane was in a steep descent, on the order of 15,000 feet per minute.

Such a rate of descent would necessarily indicate that the plane could not have hit the ocean very far from the 7th arc. Nevertheless, Fugro Equator, which was still conducting its broad towfish scan of the search area at the time, spent most of its time searching the area on the inside edge of the search zone in the main area, between 37.5 and 35 degrees south latitude, about 25 nautical miles inside the 7th arc. At no point between the time of our interview and the end of the towfish scan in October did Equator scan anywhere north of 34 degrees south.

Shortly thereafter, the ATSB hosted a meeting of the experts it had consulted in the course of the investigation, and the result of their discussion was published on December 20 of this year as “MH370 – First Principles Review.” This document confirms what Gordon told me, that the group believed that the BFO data meant that the plane had to have been in a steep dive at the time of the final ping. What’s more, the report specified that this implied that the plane could not have flown more than 25 nautical miles from the 7th arc, and indeed most likely impacted the sea within 15 nautical miles.

By the analysis presented above, a conclusion is fairly obvious: the plane must have come to rest somewhere south of 34 degrees south, within 25 nautical miles of the seventh arc. Since this area has already been thoroughly scanned, then the implication is that the plane did not come to rest on the Indian Ocean seabed where the Inmarsat signals indicate it should have.

I would suggest that at this point the search should have been considered completed.

Nevertheless, the “First Principles Review” states on page 15 that the experts’ renewed analysis of the 777 autopilot dynamics indicates that the plane could have crossed the 7th arc “up to 33°S in latitude along the 7th arc.”

Then in the Conclusions section on page 23 the authors describe “a remaining area of high probability between latitudes 32.5°S and 36°S along the 7th arc,” while the accompanying illustration depicts a northern limit at 32.25 degrees south.

In other words, without any explanation, the northern limit of the aircraft’s possible impact point has moved from 34 degrees south in the Bayesian Methods paper in early 2016 to 33 degrees south on page 15 in the “First Principles Review” released at the end of the year. Then eight pages later within the same report the northern limit has moved, again without explanation, a half a degree further north. And half a page later it has moved a quarter of a degree further still.

Is the ATSB sincere in moving the northern limit in this way? If so, I wonder why they did not further search out this area when they had the chance, instead of continuing to scan an area that they apparently had already concluded the plane could not plausibly have reached.

I should point out at this point that the area between 34 south and 35.5 south has been scanned to a total widtch of 37 nautical miles, and the area between 32.5 and 34 has been searched to a total width 23 nautical miles. Thus even if the ATSB’s new northern limits are correct, they still should have found the plane.

As a result of the above I would suggest that:

a) Even though most recent report describes “the need to search an additional area representing approximately 25,000 km²,” the conduct of the ATSB’s search does not suggest that they earnestly believe that the plane could lie in this area. If they did, they could have searched out the highest-probability portions of this area with the time and resources at their disposal. Indeed, they could be searching it right now, as I write this. Obviously they are not.

b) The ATSB knew, in issuing the report, that Malaysia and China would not agree to search the newly suggested area, because it fails to meet the agreed-upon criteria for an extension (“credible new information… that can be used to identify the specific location of the aircraft”). Thus mooting this area would allow them to claim that there remained areas of significant probability that they had been forced to leave unsearched. This, in effect, would allow them to claim that their analysis had been correct but that they had fallen victim to bad luck.

c) The ATSB’s sophisticated mathematical analysis of the Inmarsat data, combined with debris drift analysis and other factors, allowed them to define an area of the southern Indian Ocean in which the plane could plausibly have come to rest. A long, exhaustive and expensive search has determined that it is not there.

d) The ATSB did not fall victim to bad luck. On the contrary, they have demonstrated with great robustness that the Inmarsat data is not compatible with the physical facts of the case.

e) Something is wrong with the Inmarsat data.

New York: The Search for MH370 Seems to Be Over. What Now?

21-mh370-w710-h473

Australian officials have concluded that the $180 million search for missing Malaysia Airlines Flight 370 has failed. In a report timed to coincide with the wind-down of the two-year-long inspection of the southern Indian Ocean, a panel of experts convened by the Australian Transport Safety Board opined that the plane most likely lies somewhere in a zone of open ocean about the size of New Hampshire to the northeast of the current search area.

This new zone probably won’t be examined. The three countries responsible for the search — Australia, Malaysia, and China — have already stated that no further attempts to find the plane will be undertaken, unless compelling new evidence emerges.

In short, the biggest mystery in the history of modern aviation doesn’t look like it will be solved anytime soon. So it’s a good moment to take stock about what we know and what to expect in the future as we try to make sense of frustrating and tragic irresolution:

The investigators now say they have a pretty good handle on how the plane went down.

Ironically, while admitting failure, the Australian report reflects the experts’ increased confidence that they understand more or less what happened the night of the vanishing.

Based on automatic signals — “pings” — exchanged between the plane and a navigation satellite during the final six hours MH370 was in the air, investigators believe that after the airliner vanished from radar screens over the Malacca Strait it must have taken a final turn to the left and flown south on a magnetic compass heading (one of several possible navigational modes a plane can use). It then flew straight until it ran out of fuel and dived into the ocean at high speed, smashing apart into small fragments.

The scenario would be consistent with pilot suicide, but the report does not mention the secret Malaysian police report leaked earlier this year that revealed that captain Zaharie Ahmad Shah had saved a set of points on his home flight simulator in which he flew with zero fuel in the remote southern Indian Ocean. The simulator data could reasonably be interpreted as evidence he planned a suicide flight, or it could be a freak coincidence. The ATSB has long maintained silence regarding the possible identity of the perpetrator, saying that its job is to figure where MH370 went, not why it went there.

The plane is almost certainly not in the huge patch of ocean investigators spent two years searching.

The investigators long believed that the plane’s impact point lay within a nearly 50,000-square-mile rectangle calculated by Australia’s Defense Science Technology Group. But this high-probability zone has now been searched out using towed side-scan sonar arrays and autonomous underwater vehicles. Apparently, the plane isn’t there.

Some observers have speculated that the wreckage might have been missed by the sonar scan, perhaps falling into the shadow of a seamount or the depths of a ravine. The report, however, throws cold water on this idea, explaining that the technology is capable of searching all but the most rugged 1.2 percent of the search area, and therefore, “There is a high degree of confidence that the previously identified underwater area searched to date does not contain the missing aircraft.”

The new proposed search area probably won’t be examined.

If the plane isn’t in the priority search area, then it must be somewhere else. But the range of possibilities is limited. If it crashed any farther north, the debris field would have been spotted during the massive aerial search conducted just after the disappearance. If it crashed south of the current search area, debris would have been swept to the coast of Australia and likely been discovered by beachcombers. By a process of elimination, then, the endpoint could only be in a fairly tightly constrained area, about one eighth the size of the current search zone and adjacent to its northeastern edge.

“The participants of the First Principles Review were in agreement on the need to search [this] additional area,” the report states. But this extra area is large — about 10,000 square miles — and it would take months and tens of millions of dollars to scan. In its previous agreement with China and Malaysia, Australia stipulated that the search would only continue if “credible new evidence leading to the identification of a specific location of the aircraft” were found. This new analysis will not likely fit that bill.

What if the new area is searched and the plane still isn’t found?

That, the report states, “would exhaust all prospective areas for the presence of MH370.” That is to say, if the plane isn’t there, then the searchers weren’t just unlucky, their analysis was altogether wrong, and something else entirely must have happened to the plane.
But what? One possibility is that they misinterpreted one of the satellite pings. For instance, the ATSB has long puzzled over the value of the final ping but recently became convinced it must indicate that the plane was plummeting in a steep, fatal dive. If this conclusion is wrong, and the plane was instead being held in a long Sullenberger-esque glide by a suicidal pilot, then the plane’s endpoint could lie anywhere in a much larger swath of ocean.

Another possibility is that the ATSB misinterpreted all the satellite data. After MH370 disappeared from radar over the Malacca Strait, it was electronically invisible, flying over empty ocean in the dark of a moonless night. It could have gone anywhere in the world and no one would have been the wiser. Then, mysteriously, just three minutes later, its satellite communication system switched back on. This is not something that happens accidentally, or that most pilots know how to do. And yet, it is this baffling event that provided everything investigators know about the plane’s final hours. Could this strange satcom behavior have been the result of tampering by sophisticated hijackers, in order to feed investigators misleading clues? Twice I’ve asked teams within the investigation whether the satcom data could have been altered; both times they told me that they assumed that it was good.

Now that the ATSB has thrown in the towel, such questions will remain in limbo. The search will not be officially ended, only suspended. This means that according to international aviation treaties search officials will not have to issue a comprehensive final report. And so potentially vital clues about the fate of the airplane will remain hidden away indefinitely.

The mystery will endure.

(This article originally ran on December 21, 2016, in New York magazine.)