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    Army Report Links Pentagon Equipment Glitch to Aborted Landings at D.C. Airport

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    The diversion of two commercial flights on May 1 has raised new questions about equipment and safety in some of Washington’s busiest airspace.Two commercial flights were diverted from Ronald Reagan National Airport on May 1 in part because of a communications glitch between an Army Black Hawk helicopter and Pentagon air traffic controllers, according to an Army official who was briefed on an internal review of the matter.The Black Hawk helicopter had tried to land on the helipad near the Pentagon but was asked to fly around and land a short while later, according to an Army statement issued Friday. That request, which came from air traffic controllers at the Pentagon, arose from a short period in which the controllers lost audio and visual contact with the helicopter just moments before it was set to land, the official said.The helicopter “initiated a go-around due to a delay in clearance from the Pentagon Tower,” the Army wrote in its statement. The Associated Press earlier reported details of the Army review.The Federal Aviation Administration and the National Transportation Safety Board are also investigating the event and declined to comment.The May 1 episode, which included the aborted landings of a Delta Air Lines flight and a Republic Airways flight, has been under unusual scrutiny because of the recent spate of problems in U.S. aviation.In January, a midair collision near National Airport between a different Army Black Hawk helicopter and a commercial flight from Wichita, Kan., killed 67 people. And in recent weeks, air traffic control centers from Philadelphia to the Denver area have been affected by equipment outages that have frightened controllers, raising concerns about air safety.The F.A.A. oversees the National Airport air traffic control tower and has been working to address the equipment and staffing troubles. At a Senate hearing last week, Franklin McIntosh, then the deputy chief operating officer of the F.A.A., said that his agency had not known until the May 1 episode that a hotline linking the Pentagon’s controllers to their counterparts at the National Airport tower had been inoperable for three years. In the meantime, the two entities were communicating over a landline, officials have said.“We were extremely troubled by the incident that occurred,” Mr. McIntosh said, adding that the Defense Department had suspended certain operations in the National Airport airspace afterward. A repaired hotline would be necessary in order for the flights to resume, the F.A.A. official added.The aviation agency recently restricted a particularly treacherous helicopter flight route in the National Airport vicinity and mandated that Army flights operate with a location broadcasting system called ADS-B Out. The Army said on Friday that the Black Hawk in the May 1 episode was using ADS-B Out at the time and that it was also flying on an approved route.The Army also said in its statement that one of the commercial flights was diverted because of a problem with National Airport controllers’ “sequencing” of air traffic. The second diversion request stemmed from conflicting aircraft location data, the statement added, without providing details. More

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      Audio Data Shows Newark Outage Problems Persisted Longer Than Officials Said

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      <!–> [–><!–>On April 28, controllers at a Philadelphia facility managing air traffic for Newark Liberty International Airport and smaller regional airports in New Jersey suddenly lost radar and radio contact with planes in one of the busiest airspaces in the country.–><!–> –><!–> [–><!–>On Monday, two weeks after the episode, Sean Duffy, the secretary of transportation, […] More

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      See How a Communications Outage Affected Flights at Newark Airport

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      <!–> [–><!–>On April 28, shortly before 1:30 p.m., air traffic controllers working the airspace around Newark Liberty International Airport lost communications with planes for roughly 30 seconds.–><!–> –><!–> [!–> <!–> –><!–> [–><!–>Air traffic data shows that after the outage, multiple planes began circling in the air, awaiting a safe opportunity to land. Starting about 15 […] More

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      How Lost Radar and Silent Radios Have Upended Newark Air Travel

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      On a recent afternoon in Philadelphia, an air traffic controller began shouting that he had lost his radar feed for planes flying in and out of Newark Liberty International Airport.Some of his colleagues still had radar but their radios went dead, prompting frantic calls to their counterparts in New York urging them to keep their planes away from Newark’s airspace.Then, for 30 harrowing seconds until the radios came back, there was nothing more to do but hope — as they had no means of telling pilots how to avoid crashing their planes into one another.Shortly after that, one controller discovered a trainee, who had been directing Newark traffic under supervision just moments earlier, shaking in the hallway.That was the chaotic scene on Monday, April 28, according to several people who were present when controllers working the airspace for Newark lost the means to do their jobs.The failure of the system the controllers rely on left several of those on duty that day with extreme anxiety, requiring a mental health respite that has caused low staffing levels for days since. It has also prompted more than 1,000 flights at one of the nation’s busiest airports to be canceled or delayed, leaving some passengers feeling frustrated and abandoned.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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      2 Planes Abort Landings as Army Helicopter Flies Near D.C. Airport

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      The episode followed a fatal collision between a military helicopter and a commercial jet in January, and prompted concern and outrage among officials.Federal transportation safety officials were investigating on Friday after two commercial flights aborted landings because an Army helicopter had entered the airspace around Ronald Reagan Washington National Airport, where helicopter traffic has been restricted since a fatal collision in January.Air traffic controllers instructed Delta Air Lines Flight 1671 and Republic Airways Flight 5825 to abort their landings around 2:30 p.m. Thursday because of the helicopter’s presence, according to the Federal Aviation Administration, which has begun an investigation along with the National Transportation Safety Board.The helicopter was a Black Hawk headed to the nearby Pentagon, the safety board said.Both planes later landed safely, but the episode prompted outrage among officials in Washington.“Our helicopter restrictions around DCA are crystal clear,” Transportation Secretary Sean Duffy said in a social media post, using the airport’s code. He said he would speak to the Defense Department about “why the hell our rules were disregarded.”The Army said in a brief statement that the helicopter had been “directed by Pentagon air traffic control to conduct a ‘go-around,’ overflying the Pentagon helipad in accordance with approved flight procedures,” as it headed to the Pentagon.“The incident is currently under investigation,” the Army said. “The United States Army remains committed to aviation safety and conducting flight operations within all approved guidelines and procedures.”The F.A.A. had restricted nonessential helicopter traffic around the airport, which is just miles from the Capitol and the White House, after a Jan. 29 midair collision between an American Airlines flight and Army Black Hawk helicopter killed 67 people.The episode on Thursday also renewed concerns by lawmakers, many of whom use the airport.Senator Ted Cruz, the Texas Republican who leads the Senate’s committee that handles transportation, said the incident underscored continuing risks posed by military flights near the airport and called for legislation to improve civilian air safety.“Just days after military flights resumed in the National Capital Region, the Army is once again putting the traveling public at risk,” Mr. Cruz said on social media. “Thank God there was a decisive response from air traffic controllers and pilots, or else these two close calls could have resulted in the loss of hundreds of lives.”Senator Maria Cantwell of Washington, the committee’s top Democrat, criticized the military flight’s proximity to commercial traffic.She called it “far past time” for Defense Secretary Pete Hegseth and the F.A.A. “to give our airspace the security and safety attention it deserves.” More

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      Newark Airport Is Experiencing Major Flight Delays. What’s Causing Them?

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      Staffing shortages at an air traffic control center have added to the effects of a runway closure, prompting United Airlines to cut flights at the hub.Flying into or out of Newark Liberty International Airport has brought plenty of misery in the last week, with cancellations, delays stretching well past five hours and flight diversions that have stranded travelers far from their destinations.Passengers are reporting on social media that they have missed flights and spent hours stuck on the tarmac aboard planes. Some are still struggling to make new travel arrangements.The disruptions, which stretched into Friday with delays averaging over two hours, have highlighted ongoing air traffic control staffing issues. The troubles prompted United Airlines, Newark’s largest carrier, to cut nearly three dozen round-trip flights per day at the hub beginning this weekend, the carrier’s chief executive, Scott Kirby, announced on Friday.Here’s what anyone heading to Newark Airport needs to know.Air traffic control staffing is limiting capacityLast summer, management of the airspace surrounding Newark shifted from New York to Philadelphia. This move, which involved relocating at least a dozen air traffic controllers, was meant to ease air traffic delays.The Federal Aviation Administration has attributed this week’s flight disruptions at Newark to equipment failures and unspecified staffing issues at the Philadelphia air traffic control center as well as to construction on one of Newark’s runways.These ongoing staffing issues are “effectively limiting the capacity of Newark Airport,” said Aidan O’Donnell, the general manager of New Jersey airports at the Port Authority of New York and New Jersey.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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      Pilots Discussed Alternate Ways to Land Before Deadly Jeju Air Crash

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      The pilots’ conversation with air traffic controllers, revealed in a partial transcript, could offer clues to what caused the disaster in South Korea, which killed 179 people.The pilots of Jeju Air Flight 2216 signaled three different plans for landing the stricken plane in the minutes before it crashed and killed 179 people in December, according to a partial transcript of their communication with air traffic controllers obtained by The New York Times.The transcript shows that the pilots reported a bird strike and radioed a mayday call as they approached Muan International Airport in South Korea on the morning of Dec. 29. They said they would turn left, then asked to turn right, intending to approach the airport’s sole runway from the south. When that failed, air traffic controllers asked if they wanted to land from the opposite direction, and the pilots said yes.The plane landed on its belly, overran the runway and struck a concrete structure that housed navigation aids, bursting into a deadly fireball. Only two people — flight attendants at the very back of the plane, a Boeing 737-800 — survived.The cause of the disaster, the deadliest plane crash on South Korean soil, is still being investigated, and the exchange between the pilots and the control tower could be a crucial piece of the puzzle. That is because it covers a period of about four minutes during which both of the plane’s flight recorders, known as black boxes, had stopped recording.The transcript includes no information about the state of the jet’s two engines or its electrical supply, which are intense areas of focus for investigators. It is still unclear why the black boxes went dark or why the plane’s landing gear was not engaged.The transcript was read out on Saturday to relatives of the victims by a representative of a board that was set up to investigate the crash. The official told them that the readout excluded parts of the conversation to protect the privacy of its participants, according to people who shared it with The Times. Officials have not publicly released the transcript, and the board did not immediately respond to a request for comment.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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      Aviation Chaos Can Quickly Spiral, Despite Contingency Plans

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      Airlines, airports and air traffic controllers prepare for chaos. But that doesn’t make responding to it any less complicated.The global aviation system is deeply interconnected and responding to a disruption — especially one as severe as a power outage at a global airport hub — is a delicate balancing act. For airlines, moving even a small number of flights can have cascading effects.“They’re thinking not just in terms of a single day, but recovery,” said Dr. Michael McCormick, a professor of air traffic management at Embry‑Riddle Aeronautical University, who managed the federal airspace over New York during the Sept. 11 terrorist attacks. “They have to look at where passengers with bags, aircraft and aircrews need to be tomorrow, the next day, and the next day.”When crises occur, airline network operation centers go into overdrive. The centers are the nerve centers of carriers — typically large, quiet, secure rooms with power backups and protections against severe weather and disasters.At large airlines, operations centers are staffed around the clock with teams that monitor the weather, manage planes, communicate with air traffic control, schedule crews and much more.Small disruptions can be handled surgically — a sick pilot can be replaced or a broken plane swapped out for another. But bigger disruptions like the one at London’s Heathrow Airport can require scrapping and reworking intricate plans while taking into account a wide range of limitations.Planes differ in how many people they can carry and how far they can fly, so a small plane used for shorter domestic flights cannot easily be swapped in for a larger one used on longer flights. They also must be fueled adequately and their weight balanced appropriately, needs that must be adjusted if planes are rerouted.Regulations require that pilots and flight attendants are not overworked and are allowed to rest after certain number of hours on the clock. If a flight takes too long to depart, a crew can time out. When schedulers do reassign crews, they also have to take into account where those pilots and flight attendants are needed next, or they could risk more disruptions later.Airlines, of course, do not operate in isolation. As they change plans, they need to work with airport and air traffic control officials who may have limited resources to accommodate the changes. Airports are limited not just in how many flights they can receive, but also, in some cases, what types of planes they can safely accept. In the United States, for example, many air traffic control towers have long suffered from controller shortages. More

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      Send Us Your Views on Airplane Safety and the D.C. Reagon Airport Crash

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      We want to hear your perspective on the circumstances that led to the Jan. 29 midair collision near Reagan National Airport, and on air safety and regulation in general. What works and what does not?The Jan. 29 collision of a passenger jet and a military helicopter close to Washington’s Ronald Reagan National Airport was the worst in nearly a quarter of a century, taking 67 lives. The National Transportation Safety Board is investigating the crash, and a combination of flawed communications and congested airspace in the area appear to be part of the explanation.The Reagan National crash was only the first in a string of recent aviation accidents spanning from Philadelphia to Nome, Alaska. On Feb. 17, another U.S. passenger jet crash-landed in Toronto, injuring more than a dozen people.In the interests of educating the public and shining a brighter light on aviation safety, we want to better understand what has happened in Washington and beyond. Are you a pilot who has spotted a detail we haven’t reported on? Are you a passenger who has been affected by the Reagan National crash or others? Maybe you are a current or former government employee with oversight of these matters who has a suggestion for us in our reporting? If any of this sounds like you, we would like to hear your perspective.We’ll read every response to this questionnaire and contact you if we’re interested in learning more about your story. We won’t publish any part of your response without following up with you first, verifying your information and hearing back from you. And we won’t share your contact information outside the Times newsroom or use it for any reason other than to get in touch with you. More