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      What Caused a Plane to Fall From the Sky in Brazil?

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      Officials are investigating potential causes of a plane crash that killed 62 people near São Paulo. Using videos and other clues, aviation experts have formed theories.Brazilian investigators on Saturday began analyzing the black boxes from a São Paulo-bound flight to try to understand why the passenger plane fell from 17,000 feet on Friday, in a crash that killed all 62 on board.But to aviation experts around the world who watched the videos showing the 89-foot plane spinning slowly as it plummeted before crashing almost directly on its belly, the question of what had happened was simple to answer: The plane had stalled.In other words, the plane’s wings had lost the lift needed to keep the aircraft aloft, causing it to stop flying and start falling.“You can’t get into a spin without stalling,” said John Cox, an airline pilot for 25 years who now aids plane crash investigations. “It’s A plus B equals C.”The question of why VoePass Flight 2283 might have stalled, however, remained a mystery.Did it lose significant speed? Did its nose pitch up too high? Did ice build up on its wings? Did an engine fail? Was its stall-warning system working? Were the two pilots tired or distracted?“The main thing we know is that it’s never one thing,” said Thomas Anthony, director of the aviation safety program at the University of Southern California.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Debby’s Remnants Bring Tornado Alerts and Snarl Some East Coast Air Traffic

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      There is at least some risk of tornadoes in New Jersey, eastern Pennsylvania and southeast New York on Friday.The remnants of Tropical Storm Debby were moving up the East Coast on Friday morning, prompting warnings for flash floods and tornadoes and causing airport delays at some of the major Northeast cities.“Unfortunately, even in Debby’s weakened state, dangerous flash flooding and severe weather will continue” through Saturday across portions of the Carolinas, Mid-Atlantic, Interior Northeast and New England, forecasters from the Weather Prediction Center said.The weather was causing delays at some airports in the region.La Guardia Airport in New York issued a ground delay just after 8 a.m. on Friday and flights were delayed by an average of 82 minutes, according to the Federal Aviation Administration. In a post on social media, the airport warned passengers of flight disruptions and advised them to check in with their airlines regarding their flight status.Kennedy International Airport and Newark Liberty International Airport were also experiencing delays ranging between 30 and 60 minutes, the F.A.A. said. In Boston, no delays were reported, but authorities at Logan International Airport warned passengers to check with their airlines before arriving at the airport.In Washington, D.C., flights to and from Ronald Reagan National Airport were facing delays, the F.A.A. said.Overnight, the storm system brought rain once again to coastal Carolina, escalating the flooding situation in the northern suburbs of Charleston, S.C. Some residents who had been thinking the worst had already passed them woke to the surprise of floodwaters in their homes. Showers or thunderstorms could return to coastal Carolina on Friday afternoon.Debby’s remnants on Friday were simultaneously weakening and accelerating northeastward along the spine of the Blue Ridge, forecasters said. As it moves through the region, some storms have been acting like train cars on a track, repeating over the same areas and prompting flood warnings in Virginia, especially around Washington, D.C.Tornadoes spawned by Debby ThursdayLocations of tornado sightings or damage reported by trained spotters. More

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      Boeing Says It’s Changing Type of Panel That Blew Off Alaska Airlines Jet

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      The company told regulators the changes in design and production of the door plugs would allow its warning systems to detect malfunctions.Boeing officials told regulators on Tuesday that the aircraft maker would make changes to how it designed and produced the type of panel that blew off an Alaska Airlines jet shortly after takeoff in January.Boeing told regulators that it was redesigning its door plugs — the panels that replace emergency-exit doors in certain design configurations that create more seats — so that its warning systems could detect any malfunctions.The design changes are expected to be “implemented within the year,” said Elizabeth Lund, a senior vice president for quality at Boeing, who testified on Tuesday at an investigative hearing held by the National Transportation Safety Board, an independent government investigative agency.The hearing on Tuesday revealed that Boeing employees removed a door plug from what would later be the Alaska Airlines jet to repair damaged rivets, but without any required internal authorization or paperwork detailing the removal of the panel — a critical structural element. The safety board’s investigation found earlier this year that the plane, a 737 Max 9, left the Boeing factory in Renton, Wash., missing bolts that should have held in place the door plug that blew off midair.The safety board’s chairwoman, Jennifer Homendy, suggested at the hearing that the work culture at Boeing prioritized meeting production schedules over safety standards, and led to an overtaxed work force and lapses in the production process.On Tuesday, Ms. Homendy read quotes from the board’s interviews with mechanics who have worked at the Boeing facility for years. The workers testified to board investigators that they were regularly pressured into working 10 to 12 hours a day, six to seven days a week, Ms. Homendy said.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Ukraine Has Received F-16 Fighter Jets, Zelensky Says

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      President Volodymyr Zelensky did not say whether the jets had already flown combat missions. A shortage of trained pilots and a limited number of jets will constrain their immediate impact.President Volodymyr Zelensky of Ukraine said on Sunday that his army had received a first batch of F-16 fighter jets. The long-awaited arrival of the Western-supplied jets should bolster the country’s defenses, although Kyiv appears to have received too few of them so far to have an immediate impact on the battlefield.“F-16s are in Ukraine. We did it,” Mr. Zelensky said in a video posted on social media networks showing him at an air base addressing and meeting Ukrainian pilots. He was standing in front of two F-16s, and two more flew overhead as he spoke.At the very least, the arrival of the jets will boost Ukrainians’ morale, which has been dampened by months of slow but steady Russian advances on the battlefield and devastating attacks on the country’s power grid.Mr. Zelensky said Ukrainian pilots “have already started using them for our country,” but he did not say whether they had already flown combat missions in Ukraine. Nor did he say how many jets had arrived in the country.Ukraine hopes the F-16s, highly versatile aircraft equipped with advanced radar systems and a variety of weapons, will help turn the tide on the battlefield, where Russia has held the upper hand for much of the past year.The presence of the jets will pose a new threat to Russian pilots and help deter them from entering Ukrainian airspace to attack troops on the front line and in cities. The F-16s are also expected to improve Ukraine’s ability to shoot down Russian missiles, easing the pressure on its weakened air defense systems.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Passenger Who Tried to Open Cockpit Gets 19 Months in Prison

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      Juan Rivas, who threatened flight attendants with a champagne bottle and a plastic knife, tried to open an exit door of an American Airlines plane, prosecutors said.A California man who tried to intimidate flight attendants on an American Airlines flight using plastic silverware from a service cart and a glass champagne bottle, and then tried unsuccessfully to open an exit door and the cockpit, was sentenced on Wednesday to 19 months in prison.The man, Juan Remberto Rivas, 52, was arrested and charged with interfering with flight crew members on Feb. 13, 2022, after a flight from Los Angeles to Washington, D.C., according to the U.S. Attorney’s Office for the Western District of Missouri.During the flight, Mr. Rivas, who, according to court records, admitted to using methamphetamines before the flight, began to panic and told flight attendants that the plane was not moving and that his family was in danger, court records said.His behavior led to a physical struggle that forced the plane to make an emergency landing in Kansas City, Mo.Mr. Rivas, who pleaded guilty in January, had faced a maximum sentence of 20 years in prison but prosecutors sought a sentence of 41 to 51 months despite him threatening to “bring down the plane,” court records and the attorney’s office said.“The government believes that the defendant’s actions were reckless because of his use of methamphetamine, rather than an intentional effort to bring down the aircraft,” the prosecution, led by Assistant U.S. Attorney Paul S. Becker, argued in a sentencing memorandum.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Transportation Department to Investigate Delta After Flight Delays

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      Pete Buttigieg, the transportation secretary, made the announcement after the airline suspended travel for unaccompanied minors.Transportation Secretary Pete Buttigieg said on Tuesday that his department had opened an investigation into Delta Air Lines after the tech outage last week disrupted flights worldwide, and the agency wanted to hear from travelers who said that the airline had not complied with passenger protection requirements.The aim of the investigation is to “ensure the airline is following the law and taking care of its passengers during continued widespread disruptions,” Mr. Buttigieg said in a statement.“All airline passengers have the right to be treated fairly,” he added.The Transportation Department has consumer protection requirements that cover lost baggage, lengthy tarmac delays, compensation for being bumped from an overbooked flight and other protections.Passengers should try to resolve their travel issues directly with Delta, Mr. Buttigieg said, but the department wanted to hear from those who thought the airline “has not complied” with the protection requirements during the recent travel disruptions. His announcement included a link to a form for passengers to provide information about their concerns.Secretary of Transportation Pete Buttigieg said his agency wanted to hear from travelers who believed Delta Air Lines had not complied with federal protection requirements.Alex Welsh for The New York TimesDelta barred children under age 18 from traveling without a guardian as it struggled to recover from the global technology outage on Friday, which crippled Microsoft systems, hobbling train networks, disrupting hospitals and forcing airlines around the world to ground flights.The airline initially suspended travel for unaccompanied minors until Sunday, but then it extended the suspension through Tuesday. “Those already booked will not be able to travel,” Delta’s website said. “Please do not book new travel for unaccompanied minors during this time.”Delta has been the slowest U.S. airline to restore its operations, canceling more than 1,000 flights each day from Friday to Monday. Another 445 had been canceled as of 11 a.m. on Tuesday, according to the flight tracking website FlightAware. Some families said they had not been notified of the change until their children were turned away at the airline counter at the airport. More

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      Congress Calls for Tech Outage Hearing to Grill Executive

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      The House Homeland Security Committee called on the chief executive of the cybersecurity firm CrowdStrike to testify on the disruption.A Congressional committee called on the chief executive of CrowdStrike to testify at a hearing about its role in a tech outage that roiled the global economy, in one of the first attempts to hold the cybersecurity company responsible.CrowdStrike sent a faulty security update to its customers Thursday night, resulting in millions of Microsoft Windows devices shutting down and disruptions to airlines, hospitals, logistics companies and others.Americans “deserve to know in detail how this incident happened and the mitigation steps CrowdStrike is taking,” wrote Representative Mark Green of Tennessee, the Republican chairman of the Homeland Security Committee, and Representative Andrew Garbarino, Republican of New York.The letter was sent to George Kurtz, CrowdStrike’s chief executive. Mr. Green and Mr. Garbarino asked the company for a response to scheduling the hearing this week, but did not specify when it would take place.“CrowdStrike is actively in contact with relevant congressional committees,” said a company spokeswoman. “Briefings and other engagement timelines may be disclosed at members’ discretion.”The request came as the world continued to deal with the fallout from the widespread outages. Delta Air Lines canceled more than 800 flights on Monday, leaving more passengers stranded. And other industries were still recovering after being knocked offline for hours.The outage underscores how the world has become reliant on a small group of companies to maintain its digital infrastructure. CrowdStrike, while little-known to most consumers, is the second largest American cybersecurity company. More than half of Fortune 500 companies use its products.“This incident demonstrates the interconnected nature of our broad ecosystem — global cloud providers, software platforms, security vendors and other software vendors, and customers,” said a Microsoft executive, David Weston, in a blog post on Saturday. “It’s also a reminder of how important it is for all of us across the tech ecosystem to prioritize operating with safe deployment and disaster recovery using the mechanisms that exist.”CrowdStrike’s products are used primarily by large businesses, not consumers. Its flawed update sent computers running Microsoft’s Windows operating system into a spiral where they continually rebooted. Although CrowdStrike sent a fix, many computers didn’t get it because of the loop. In many cases, businesses had to delete the damaging file from each machine manually.Mr. Kurtz on Friday told NBC’s “Today” show that the incident was not a cyberattack and was the result of the faulty update. But the congressional committee said in its letter to Mr. Kurtz on Monday said that the incident still presented vexing security questions.“Malicious cyber actors backed by nation-states, such as China and Russia, are watching our response to this incident closely,” the lawmakers said. “Protecting our critical infrastructure requires us to learn from this incident and ensure that it does not happen again.”Representative Ritchie Torres, Democrat of New York, on Friday also asked the Department of Homeland Security to investigate the outages. More

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      Scams Tied to the CrowdStrike Crash Have Bloomed. Here’s How to Stay Safe

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      People posing as airline customer service representatives may be making fraudulent attempts to access your money or private data, experts warn.In the hours after the American cybersecurity firm CrowdStrike deployed a flawed software update that crippled critical businesses and services around the world, scammers pounced.Government agencies and businesses have warned that the panic caused by the CrowdStrike crash on Friday has given criminals an opening to take advantage of customers who are looking to reschedule flights, access banking information or fix their technology.Here are some ways to guard against the fraudulent schemes.Scammers see an opportunity.CrowdStrike provides cybersecurity for some 70 percent of Fortune 100 companies, so the crash led to widespread failures that grounded planes, crippled businesses, disrupted 911 emergency systems and delayed banking transactions.Thieves online are using the confusion to carry out a variety of scams, including phishing attempts, the U.S. Cybersecurity and Infrastructure Security Agency said. The National Cyber Security Center in the United Kingdom issued a similar statement noting that an “increase in phishing referencing this outage has already been observed.”Scammers may look to get your money immediately by offering a product like a bogus plane ticket. But they could also be after personal identifying data that would allow them to access your finances in the future.What industries are being targeted?Because grounded planes caused frustrated customers to look to reschedule their flights, travel has been particularly subject to schemers, said Anton Dahbura, the executive director of the Information Security Institute at Johns Hopkins University.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More