2026年8月27日 美国东部时间下午6:44 / 哥伦比亚广播公司/美联社
联邦调查人员周四表示，在一架客机获准起飞之际，海军陆战队一号直升机恰好离开白宫，一周前华盛顿的空中交通管制员与特朗普总统的直升机飞行员曾就沟通问题进行过磋商。
美国国家运输安全委员会的初步报告显示，管制员称未收到海军陆战队一号飞行前标准的三分钟预警呼叫，双方当时商定了替代方案——由第三方转接无线电呼叫，但8月4日在罗纳德·里根华盛顿国家机场附近事故发生当日，这一转接计划也未能成功。
当时客机和直升机同时升空似乎违反了去年该繁忙机场附近撞机事故后出台的安全规程，但官员强调总统从未处于危险之中。五角大楼与美国联邦航空管理局早有长期协议，要求在总统直升机起飞前三分钟向管制员发出预警，这一协议早于去年的坠机事故。
美国国家运输安全委员会表示，塔台录音显示当天管制员从未收到海军陆战队一号飞行员发出的直升机即将起飞的预警信号，但ATC.com网站发布的另一组录音显示，直升机确实发出了这些呼叫。
美国国家运输安全委员会的报告发现，直升机飞行员试图通过阿纳卡斯蒂亚-博林联合基地的直升机设施转接他们的三分钟预警呼叫，但同样未能成功。
哥伦比亚广播公司新闻此前曾报道，海军陆战队一号飞行员曾三次尝试联系里根机场塔台，提醒管制员总统专机即将起飞。塔台曾一度确认收到通信，但表示“信号中断且无法辨认”，要求飞行员重复信息。
“海军陆战队一号的飞行员是世界上最优秀的飞行员，白宫对这些爱国者以及其他负责保障总统安全的安保人员抱有最高度的信心，”白宫发言人库什·德赛在回应美国国家运输安全委员会的初步报告时，在一份声明中告诉哥伦比亚广播公司新闻。“尽管在8月4日的短暂间距违规事件中，总统从未处于任何危险之中，但白宫仍将与相关军方、联邦航空管理局及其他安保人员合作，确保总统的持续安全。”
2025年1月29日一架客机与陆军黑鹰直升机相撞后，联邦航空管理局规定，只要有直升机以冲突航线途经该机场，机场所有起降操作都将暂停。白宫和里根机场附近的空域挤满了军用和商用飞机，交通十分拥堵。
联邦航空管理局已经承认，在两架飞机开始相互避让之前，直升机和客机一度过于接近。海军陆战队一号的飞行员发现飞机后暂停起飞，直到其安全离开该区域后，客机迅速爬升至直升机上方。
联邦航空管理局在周四的一份声明中表示，“在8月4日涉及海军陆战队一号的事件发生后，我们立即采取了行动，包括搬迁天线以改善里根机场管制员与海军陆战队一号飞行员之间的通信，并审查了相关程序。我们已通过其他方式传达了三分钟预警，一名管制员已确认收到，并在起飞前与海军陆战队一号建立了正向联系。”
美国国家运输安全委员会表示，初步估算显示，两架飞机在最接近时的横向距离仅略超过0.8英里，垂直间距约700英尺。恩沃伊航空航班的机组人员告诉调查人员，他们在起飞后不久就收到了防撞系统发出的交通警报，但从未看到直升机。
里根机场塔台的官方联邦航空管理局录音中，并未包含海军陆战队一号当天载着总统前往安德鲁斯空军基地的起飞预警。
ATC.com网站发布的录音显示，海军陆战队一号飞行员像联邦航空管理局与军方2013年达成的协议要求的那样，告知塔台直升机“还有三分钟起飞”。但几分钟后，当直升机起飞时，管制员显得十分惊讶。
“呃，海军陆战队一号，你刚才说，呃，你会按照简报的要求执行？”管制员在给出直升机飞行指示前问道，随后补充道，“好的，没有收到三分钟预警，明白，按简报要求执行。”
管制员向直升机通报了客机即将起飞的情况后，海军陆战队一号飞行员表示他已经看到了该空中交通，并宣布：“我们将短暂延迟起飞。”
去年的撞机事故后，人们发现空中交通管制员与军方之间的沟通不畅是一个长期存在的问题。在一次国会听证会上披露，连接五角大楼和里根机场塔台的热线已经失效三年多，而联邦航空管理局甚至对此毫不知情。
美国国家运输安全委员会表示，在此次涉及海军陆战队一号的事件发生后，联邦航空管理局的技术人员发现，机场的无线电接收器与白宫直升机起飞地点之间的视线范围不足。因此，这些无线电设备已从原安置区域搬迁至里根机场塔台顶部。后续测试显示，搬迁后无线电设备运行良好。
Marine One’s warning calls before mishap went unheard by Reagan air traffic controllers, NTSB says
August 27, 2026 6:44 PM EDT / CBS/AP
Air traffic controllers in Washington and the pilots of President Trump’s helicopter met to discuss communication issues one week before a jet was allowed to take off just as Marine One left the White House, federal investigators said Thursday.
Controllers reported not receiving the standard three-minute warning call ahead of Marine One flights and both sides agreed to an alternative in those instances — but that plan to relay the radio call through someone else was also unsuccessful on the day of the Aug. 4 incident near Ronald Reagan Washington National Airport, the National Transportation Safety Board’s preliminary report shows.
Having both the jet and helicopter in the air at the same time seemed to violate safety procedures put in place after last year’s midair collision near the busy airport that killed 67 people, but officials stressed that the president was never in danger. The Pentagon also has a longstanding agreement with the Federal Aviation Administration to provide controllers with a three-minute warning before the president’s helicopter takes off that predates last year’s crash.
The NTSB said recordings from the tower showed that the controllers never heard the calls from Marine One’s pilot that day warning that the helicopter was getting ready to take off, but separate recordings posted by ATC.com show the helicopter did make those calls.
The helicopter pilots tried to relay their three-minute call through the helicopter facility at Joint Base Anacostia-Bolling, but that was also unsuccessful, the NTSB report found.
CBS News previously reported that the Marine One pilot tried to contact the tower at Reagan three times to alert air traffic controllers that the presidential helicopter was minutes away from liftoff. The tower at one point acknowledged the communication but asked for the pilot to repeat the message because it “was broken and unreadable.”
“Marine One flights are piloted by the finest aviators in the world, and the White House maintains the utmost confidence in these patriots and other security officials who are responsible for ensuring the President’s safety,” White House spokesman Kush Desai told CBS News in a statement in response to the NTSB’s preliminary report. “Although the President was at no point in harm’s way during the August 4th momentary loss of separation, the White House continues to work with relevant military, FAA, and other security personnel to ensure the President’s continued safety.”
The FAA decided after an airliner collided with an Army Black Hawk helicopter on Jan. 29, 2025, that all takeoffs and landings at the airport would be halted anytime a helicopter passes by on a conflicting route. The airspace near the White House and Reagan is heavily congested with military and commercial aircraft.
The FAA has acknowledged that the helicopter and airliner briefly got too close before the two aircraft started to move away from each other. The airplane quickly climbed above the helicopter after Marine One’s pilots saw the plane and paused until it safely left the area.
In a statement, the FAA said Thursday it “took immediate action following the Aug. 4 incident involving Marine One, including relocating an antenna to improve communications between DCA air traffic controllers and Marine One pilots and reviewing the procedures involved. The three-minute notification was communicated by alternate means, acknowledged by a controller and positive contact was established with Marine One before takeoff.”
The NTSB said preliminary estimates show the helicopter and plane were just over 0.8 miles apart laterally and about 700 feet apart vertically at their closest. The crew of the Envoy Air flight told investigators they received a traffic warning from their collision avoidance system right after they took off, but they never saw the helicopter.
The official FAA recordings from the tower at Reagan did not include the warnings that Marine One was getting ready to head to Andrews Air Force Base with the president aboard that day.
A recording posted by ATC.com showed the Marine One pilot telling the tower that the helicopter was “three minutes to life” just like the 2013 agreement between the FAA and the military calls for. But the controller seemed surprised a few minutes later when the helicopter took off.
“Uh, Marine One, you said, uh, you’re proceeding as briefed?” the controller asked before giving the helicopter directions and commenting, “OK, no three minutes, roger, proceed as briefed.”
After the controller warned the helicopter about the plane taking off, the Marine One pilot said he saw the traffic and declared, “We’ll be doing a momentary delay.”
After last year’s midair collision, it became clear that poor communication between air traffic controllers and the military had been a longstanding issue. During a congressional hearing, it came out that a hotline connecting the Pentagon to the tower at Reagan hadn’t been working for more than three years, and the FAA hadn’t even realized it.
The NTSB said that after this incident involving Marine One, FAA technicians determined that there wasn’t adequate line of sight between the radio receiver at the airport and the location where the helicopter takes off at the White House. So those radios were moved from the neighborhood where they had been located to the top of the tower at Reagan. Subsequent tests showed the radios working well after that change.