N.T.S.B. Rules Out a Cause for Battery Fire on 787 Dreamliner

Federal investigations said Sunday that they had ruled out excessive voltage as the cause of a battery fire on a Boeing 787 in Boston this month, widening the mystery into what led to the grounding of the world’s most technologically advanced jet after a second battery-related problem last week.

With investigators focused on the plane’s lithium-ion batteries, the National Transportation Safety Board said an examination of the data from the plane’s flight recorder indicated that the battery “did not exceed the designed voltage of 32 volts.” The fire aboard a Japan Airlines plane on Jan. 7 at Logan International Airport in Boston occurred after the passengers had gotten off.

Last week, a battery problem on another 787 forced an All Nippon Airways jetliner to make an emergency landing in Japan. That episode prompted aviation authorities around the world to ground the plane, also known as the Dreamliner. The Federal Aviation Administration said last week that it would not lift the ban until Boeing could show that the batteries were safe.

But with investigators on a global quest to find out what went wrong, the safety board’s statement suggested that there might not be a rapid resumption of 787 flights. The 787 first entered service in November 2011 after more than three and a half years of production delays. Eight airlines currently own 50 787s, including United Airlines.

On Friday, Japanese safety officials, who are in charge of investigating the second battery problem, suggested that overcharging a battery might have caused it to overheat. Pilots decided to make an emergency landing 20 minutes after takeoff after receiving several alarms about the battery and smelled smoke in the cockpit.

That investigation is conducted by Japan’s transportation safety board. American investigators are heplping with the inquiry.

The GS Yuasa Corporation of Japan, one of the world’s leading lithium-ion battery manufacturers, makes the batteries for the 787, and Thales, of France, makes the control systems for the battery. The battery is part of a complex electrical system that powers the 787. Like many other components and structures, Boeing outsourced much of the manufacturing to partners around the world.

The safety board typically conducts investigations through a process of elimination, and rules out possible causes along the way.

It said that the lithium-ion battery that powered the auxiliary power unit, a small jet engine used on the ground, had been examined in the safety board’s Materials Laboratory in Washington.

The battery was first X-rayed and put through a CT scan. Investigators then disassembled it into its eight individual cells for detailed examination and documentation. Three of the cells were selected for more detailed radiographic examination.

Investigators have also examined several other components that they removed from the airplane, including wire bundles and battery management circuit boards as well as the battery management unit, the controller for the auxiliary power unit, the battery charger and the power start unit.

On Tuesday, investigators will convene in Arizona to test and examine the battery charger and download nonvolatile memory from the auxiliary power unit controller. Several other components have been sent for download or examination to Boeing’s facility in Seattle and to the manufacturer in Japan.

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Sudan and South Sudan Fail to Reach a Deal on Oil and Border Security

JUBA, South Sudan (AP) — South Sudan and Sudan have failed to reach an agreement on how to carry out security arrangements and resume oil exports, officials said Saturday after several days of talks.

The two sides were in Addis Ababa, Ethiopia’s capital, to talk about setting up a safe demilitarized border zone, which would require both South Sudan and Sudan to withdraw their armies at least six miles from the contested border region.

South Sudan broke away from Sudan in 2011, but disputes remain over their common border and the sharing of oil revenues.

A major sticking point has been the demilitarization of a contested 14-mile strip of land bordering the Darfur region in Sudan and the Bahr el Ghazal region in South Sudan.

“Each government has its own understanding of the scope of the 14-mile area,” South Sudan’s negotiating team said in a statement, which goes on to call Sudan’s position “intractable.”

Last week, South Sudan’s negotiating team claimed that their country had taken a step toward carrying out the border security agreements by withdrawing its own forces from the disputed border.

But South Sudan’s military spokesman, Col. Philip Aguer, said no such withdrawal had taken place.

Colonel Aguer said that as of Friday South Sudan’s military had not received an order for the withdrawal of its troops.

“The negotiation is at the political level,” he said. “We are at the operation level. So far nothing has reached” the military’s general headquarters.

The demilitarized border is the first in a series of steps needed to ensure the resumption of South Sudan’s oil production and export through pipelines in Sudan. South Sudan shut down its production last January after accusing Sudan of stealing its oil before it reached export facilities in Port Sudan, on the Red Sea. The shutdown eventually led to open clashes between the armies of the two countries.

In September, the two sides signed an agreement on border security and oil production that was expected to end their disputes. But both sides have been unable to carry out the agreements they previously signed. The presidents of the two countries met early this month and again pledged to carry out the terms of the September deal; the latest round of talks started on Jan. 14.

According to the statement from the South Sudan negotiating team, Sudan has refused to export southern oil until the border security arrangements are fully put in effect. This includes the deployment of more than 800 Ethiopian soldiers along the border to monitor the agreement.

Sudan has also accused South Sudan of supporting rebels in the Sudanese states of South Kordofan and Blue Nile. The rebel groups were part of South Sudan’s army during the 21-year civil war between the two sides.

But since South Sudan’s independence the government maintains that it has cut off support for the rebel groups. Sudan has insisted that South Sudan must stop supporting the rebels before border security arrangements can be put in effect. But South Sudan says that Sudan is trying to delay the negotiations by “imposing new conditions” not in previous agreements.

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With Graph Search, Facebook Bets on More Sharing

SAN FRANCISCO — Facebook’s greatest triumph has been to persuade a seventh of the world’s population to share their personal lives online.

Now the social network is taking on its archrival, Google, with a search tool to mine that personal information, just as people are growing more cautious about sharing on the Internet and even occasionally removing what they have already put up.

Whether Facebook’s more than one billion users will continue to divulge even more private details will determine whether so-called social search is the next step in how we navigate the online world. It will also determine whether Facebook has found a business model that will make it a lot of money.

“There’s a big potential upside for both Facebook and users, but getting people to change their behaviors in relation to what they share will not be easy,” said Andrew T. Stephen, who teaches marketing at the University of Pittsburgh and studies consumer behavior on online social networks.

This week, Facebook unveiled its search tool, which it calls graph search, a reference to the network of friends its users have created. The company’s algorithms will filter search results for each person, ranking the friends and brands that it thinks a user would trust the most. At first, it will mine users’ interests, photos, check-ins and “likes,” but later it will search through other information, including status updates.

“While the usefulness of graph search increases as people share more about their favorite restaurants, music and other interests, the product doesn’t hinge on this,” a Facebook spokesman, Jonathan Thaw, said.

Nevertheless, the company engineers who created the tool — former Google employees — say that the project will not reach its full potential if Facebook data is “sparse,” as they call it. But the company is confident people will share more data, be it the movies they watch, the dentists they trust or the meals that make their mouths water.

The things people declare on Facebook will be useful, when someone searches for those interests, Tom Stocky, one of the creators of Facebook search, said in an interview this week. Conversely, by liking more things, he said, people will become more useful in the eyes of their friends.

“You might be inclined to ‘like’ what you like so when your friends search, they’ll find it,” he said. “I probably would never have liked my dentist on Facebook before, but now I do because it’s a way of letting my friends know.”

Mr. Stocky offered these examples of how more information may be desirable: A single man may want to be discovered when a friend of a friend is searching for eligible bachelors in San Francisco or a restaurant that stays open late may want to be found by a night owl.

“People have shared all this great stuff on Facebook,” Mr. Stocky said. “It’s latent value. We wanted a way to unlock that.”

Independent studies suggest that Facebook users are becoming more careful about how much they reveal online, especially since educators and employers typically scour Facebook profiles.

A Northwestern University survey of 500 young adults in the summer of 2012 found that the majority avoided posting status updates because they were concerned about who would see them. The study also found that many had deleted or blocked contacts from seeing their profiles and nearly two-thirds had untagged themselves from a photo, post or check-in.

“These behavioral patterns seem to suggest that many young adults are less keen on sharing at least certain details about their lives rather than more,” said Eszter Hargittai, an associate professor of communication studies at Northwestern, who led the yet unpublished study among men and women aged 21 and 22.

Also last year, the Pew Internet Center found that social network users, including those on Facebook, were more aggressively pruning their profiles — untagging photos, removing friends and deleting comments.

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Business Briefing | Medicine: F.D.A. Clears Botox to Help Bladder Control

Botox, the wrinkle treatment made by Allergan, has been approved to treat adults with overactive bladders who cannot tolerate or were not helped by other drugs, the Food and Drug Administration said on Friday. Botox injected into the bladder muscle causes the bladder to relax, increasing its storage capacity. “Clinical studies have demonstrated Botox’s ability to significantly reduce the frequency of urinary incontinence,” Dr. Hylton V. Joffe, director of the F.D.A.’s reproductive and urologic products division, said in a statement. “Today’s approval provides an important additional treatment option for patients with overactive bladder, a condition that affects an estimated 33 million men and women in the United States.”

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Business Briefing | Medicine: F.D.A. Clears Botox to Help Bladder Control

Botox, the wrinkle treatment made by Allergan, has been approved to treat adults with overactive bladders who cannot tolerate or were not helped by other drugs, the Food and Drug Administration said on Friday. Botox injected into the bladder muscle causes the bladder to relax, increasing its storage capacity. “Clinical studies have demonstrated Botox’s ability to significantly reduce the frequency of urinary incontinence,” Dr. Hylton V. Joffe, director of the F.D.A.’s reproductive and urologic products division, said in a statement. “Today’s approval provides an important additional treatment option for patients with overactive bladder, a condition that affects an estimated 33 million men and women in the United States.”

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Boeing Closer to Answer on 787s, but Not to Getting Them Back in Air

Issei Kato/Reuters

Safety inspectors looked over a 787 on Friday in Japan. The plane made an emergency landing after receiving a smoke alarm.

With 787 Dreamliners grounded around the world, Boeing is scrambling to devise a technical fix that would allow the planes to fly again soon, even as investigators in the United States and Japan are trying to figure out what caused the plane’s lithium-ion batteries to overheat.

Ray LaHood, the transportation secretary, made it clear on Friday that a rapid outcome was unlikely, saying that 787s would not be allowed to fly until the authorities were “1,000 percent sure” they were safe.

“Those planes aren’t flying now until we have a chance to examine the batteries,” Mr. LaHood told reporters. “That seems to be where the problem is.”

The Federal Aviation Administration on Wednesday took the rare step of grounding Boeing’s technologically advanced 787s after a plane in Japan made an emergency landing when one of its two lithium-ion batteries set off a smoke alarm in the cockpit. Last week at Boston’s Logan Airport, a battery ignited in a parked 787.

The last time the government grounded an entire fleet of airplanes was in 1979, after the crash of a McDonnell Douglas DC-10.

The grounding comes as the United States is going through a record stretch of safe commercial jet flying: It has been nearly four years since a fatal airline crash, with nearly three billion passengers flying in that period. The last airliner crash, near Buffalo, came after a quiet period of two and a half years, which suggests a declining crash rate.

Investigators in Japan said Friday that a possible explanation for the problems with the 787’s batteries was that they were overcharged — a hazard that has long been a concern for lithium-ion batteries. But how that could have happened to a plane that Boeing says has multiple systems to prevent such an event is still unclear.

Given the uncertainty, it will be hard for federal regulators to approve any corrective measures proposed by Boeing. To lift the grounding order, Boeing must demonstrate that any fix it puts in place would prevent similar episodes from happening.

The government’s approach, while prudent, worries industry officials who fear it does not provide a rapid exit for Boeing.

The F.A.A. typically sets a course of corrective action for airlines when it issues a safety directive. But in the case of the 787, the government’s order, called an emergency airworthiness directive, required that Boeing demonstrate that the batteries were safe but did not specify how.

While the government and the plane maker are cooperating, there are few precedents for the situation.

“Everyone wants the airplane back in the air quickly and safely,” said Mark V. Rosenker, a former chairman of the National Transportation Safety Board. “But I don’t believe there will be a corner cut to accomplish that. It will happen when all are confident they have a good solution that will contain a fire or a leak.”

Boeing engineers, Mr. Rosenker said, are working around the clock. “I bet they have cots and food for the engineers who are working on this,” he said. “They have produced a reliable and safe aircraft and as advanced as it is, they don’t want to put airplanes in the air with the problems we have seen.”

The government approved Boeing’s use of lithium-ion batteries to power some of the plane’s systems in 2007, but special conditions were imposed on the plane maker to ensure the batteries would not overheat or ignite. Government inspectors also approved Boeing’s testing plans for the batteries and were present when they were performed.

Even so, after the episode in Boston, the federal agency said it would review the 787’s design and manufacturing with a focus on the electrical systems and batteries. The agency also said it would review the certification process.

The 787 has more electrical systems than previous generations of airplanes. These systems operate hydraulic pumps, de-ice the wings, pressurize the cabin and handle other tasks. The plane also has electric brakes instead of hydraulic ones. To run these systems, the 787 has six generators with a capacity equivalent to the power needed by 400 homes.

Nicola Clark and Christopher Drew contributed reporting.

This article has been revised to reflect the following correction:

Correction: January 19, 2013

An earlier version of this article misstated the response of regulators after small cracks were found in the wings of the Airbus A380, and the year those cracks were found. Regulators required inspections, followed by fixes; they did not order the plane grounded. And the discovery was made in 2012, not two years ago.

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IHT Rendezvous: How Far Will Europeans Support France's Counter-Jihad?

LONDON — It did not require a crystal ball to foresee, as Rendezvous did in our 2013 preview, that Mali would be in the news and that France might be the first to intervene there to counter a perceived terrorist threat to Europe.

Less predictable, however, is the extent to which the French can rely on the support of their European allies now that they have decided to go it alone.

The crisis had been building for the best part of a year since mutinous soldiers staged a coup in Bamako, the Malian capital, last March, and separatist Tuareg tribesmen took the opportunity to seize the north of the country. The tribesmen were quickly pushed aside by radical Islamists, including those behind this week’s hostage-taking in neighboring Algeria.

They were poised to extend their rule this month beyond the two-thirds of the country they already control when the French stepped in at the request of the Bamako government.

As early as last April, Alain Juppé, the then French foreign minister, was warning of the “extremely grave threat” posed by the Qaeda-linked insurgents and their aim of establishing a jihadist regime in northern Mali.

In early September, António Guterres, the United Nations High Commissioner for Refugees, was telling readers of the IHT:

If unchecked, the Mali crisis threatens to create an arc of instability extending west into Mauritania and east through Niger, Chad and Sudan to the Horn of Africa and the Gulf of Aden, characterized by extended spaces where state authority is weak and pockets of territorial control are exercised by transnational criminals.

So, did the international community, and Europe in particular, react too slowly to the escalating crisis? Or has France acted precipitously in opting for a military solution to contain the threat?

David Rohde writes elsewhere on Rendezvous that regional experts believe the French had to act.

But, as French troops launched ground operations this week in support of local forces, how far are France’s European allies prepared to be sucked into a potential Malian quagmire?

Germany, Denmark and Britain are among European Union partners that have offered logistical support in Mali.

However, as David Cameron, the British prime minister, assured Parliament when he announced the offer of transport aircraft to assist the French mission, there was no question of putting British boots on the ground.

The government of Chancellor Angela Merkel is being even more cautious, limiting its assistance to supplying planes to airlift African troops from the regional ECOWAS alliance.

“Under no circumstances does Germany want to become involved in a messy conflict with no clear end in sight,” Germany’s Der Spiegel commented, “particularly not in an election year.”

Germany held out against intervention in Libya in 2011, eventually spearheaded by France and Britain, siding with Russia in a crucial United Nations vote in defiance of its European allies.

Libya underlined the lack of a common foreign policy, let alone a common defense policy, among the 27 European partners who now face a new crisis in North Africa.

Facing recriminations from some in France that it was only its soldiers who were doing the fighting, European foreign ministers agreed on Thursday to speed up the dispatch of more than 200 military personnel to train Malian government forces to confront the Islamists.

But that was an option that had been on the table since October, when European Union officials said the alliance was considering such a move.

The E.U. also stressed that the trainers, due to be deployed by mid-February at the latest, would not be involved in combat operations.

Commenting on the outcome of Thursday’s meeting, Christophe Giltay of Belgium’s RTL broadcaster, said, “More and more French people are asking themselves if the Europeans have really understood the gravity of the situation.”

Alexandra de Hoop Scheffer and Martin Michelot of the Washington-based German Marshall Fund of the United States wrote this week that “the glacial pace at which decisions are taken at the national level to support France’s efforts in Mali only underscores the need for European leaders to be willing to discuss common security issues.”

Catherine Ashton, the European Union foreign policy chief, said on Thursday some of France’s partners were “willing to help and support France in every way and they did not rule in or rule out any aspect of that, including military support.”

But, according to the German Marshall Fund experts: “The French military is nevertheless facing the hard reality of acting on its own, with very little support from other European allies.”

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Bits Blog: Facebook's Other Big Disruption

Facebook just made a potentially game-changing announcement. It got less fanfare than Tuesday’s announcement that it is going into the social search business, but this other announcement may have bigger long-term implications for the technology industry.

Put simply, some of the world’s biggest computing systems just got a little cheaper, and a lot easier to configure. As a consequence, the companies that supply the hardware to these systems may have to scramble to remain as profitable. The reason is a Facebook-led open source project.

In 2011 Facebook began the Open Compute Project, an effort among technology companies to use open-source computer hardware. Tech companies similarly shared intellectual property with Linux software, which lowered costs and spurred innovation. Facebook’s project has attracted many significant participants, including Goldman Sachs, Arista Networks, Rackspace, Hewlett-Packard and Dell.

At a user summit on Wednesday Intel, another key member of the Open Compute Project, announced it would release to the group a silicon-based optical system that enables the data and computing elements in a rack of computer servers to communicate at 100 gigabits a second. That is significantly faster than conventional wire-based methods, and uses about half the power.

More important, it means that elements of memory and processing that now must be fixed closely together can be separated within a rack, and used as needed for different kinds of tasks. There is a lot of waste in data centers today simply because, when there is an upgrade in servers, lots of other associated data-processing hardware has to be changed, too.

There were other announcements, like a computer motherboard called Grouphug that allows different manufacturers’ chips to be interchanged without altering other parts of the machine. Before, they were custom made. Put together, such innovations potentially lower the cost and complexity of running big and small data centers to an extent that works for a lot of companies.

“Who wouldn’t want a cheaper, more efficient server?” said Frank Frankovsky, vice president of hardware design at Facebook, and the chairman of Open Compute. “The problem we’re solving is much larger than Facebook’s own challenges. There is a massive amount of data in the world that people expect to have processed quickly.”

To be sure, it’s in Facebook’s interest to attack expensive hardware. The company makes money from a service that requires hundreds of thousands of computer servers distributed in big centers around the world. Google and Amazon.com, which are not members of the project, maintain proprietary systems which they apparently felt gave them a competitive edge.

For Facebook, the difference seems to be more in the software. To the extent hardware costs drop, that’s great for them. Mr. Frankovsky argued that, while “this puts challenges on the incumbents” in hardware, “it also helps them. They have a finite number of engineering resources, and this way they hear from a community about whether there is an interest for a product.” Intel may hope to benefit from its open-source release, since it could see an overall rise in demand for its chips with the move toward cheaper computing.

The real test is whether Facebook can increase the number of potential buyers for Open Compute equipment. “The question is, can they extend this beyond a few Web businesses like Facebook and Rackspace, or a few financial exercises at Goldman, and bring this to industries like oil or aerospace?” said Matt Eastwood, an analyst with IDC, a technology research firm. “That will take it from 20 or 30 companies to hundreds of companies.”

The issue isn’t so much a technical one, he argues, as it is one of getting corporate information technology professionals interested in radical design changes. Mr. Frankovsky is aware of the problem. Recently he and his colleagues led a seminar in Texas for BP, Shell and other oil giants on how they could use Open Compute hardware in their data centers.

This will not change things dramatically this year, and possibly even next, but over the long haul it could remake a lot of businesses. Linux, remember, was around for several years as a minor player, but eventually undid Sun Microsystems and others.

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Well: Your Twitter Tips for Going Vegan

In this week’s Well column, “How to Go Vegan,”, we asked you to send in your favorite tips and tricks for adopting a solely plant-based diet on Twitter. We received a range of responses, from quirky ingredient combinations that replicate a nonvegan dish to simple mantras to get you in a vegan frame of mind. Here are some of our favorites. To see the entire list of submissions, visit the hashtag, #vegantips.

Let’s start with some simple recipes that may satisfy your vegan craving:

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Add some of your favorite ingredients:

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Don’t forget to love your legumes:

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And what about some tips to keep you on the vegan path?

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And don’t forget to serve a healthy side of humor with that vegan dish:

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Well: Your Twitter Tips for Going Vegan

In this week’s Well column, “How to Go Vegan,”, we asked you to send in your favorite tips and tricks for adopting a solely plant-based diet on Twitter. We received a range of responses, from quirky ingredient combinations that replicate a nonvegan dish to simple mantras to get you in a vegan frame of mind. Here are some of our favorites. To see the entire list of submissions, visit the hashtag, #vegantips.

Let’s start with some simple recipes that may satisfy your vegan craving:

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Add some of your favorite ingredients:

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Don’t forget to love your legumes:

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And what about some tips to keep you on the vegan path?

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And don’t forget to serve a healthy side of humor with that vegan dish:

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