2026年4月20日 / 美国东部时间晚上8:51 / 哥伦比亚广播公司新闻
当地时间周六，两架西南航空航班在纳什维尔国际机场附近险些相撞，一架客机因放弃着陆而闯入了另一架正在起飞的客机的直接航道。
机场附近的阵风导致从南卡罗来纳州默特尔比奇起飞的507号航班飞行员在当地时间下午5点30分左右放弃着陆，执行复飞程序。空中交通管制员指示该机组向右转弯，这使得他们与另一架获准从平行跑道起飞的737客机处于潜在的相撞航道上。
两架客机的空中交通防撞系统（TCAS）均下令飞行员采取规避机动动作。初步飞行数据显示，当时正在起飞的、飞往田纳西州诺克斯维尔的1152号航班几乎直接从507号航班上方飞过，两者之间的高度差仅约152米。
两架航班均安全降落在原定目的地。
西南航空在一份声明中表示：“西南航空对其飞行员和机组人员在此次事件中的专业应对表示感谢。对西南航空而言，没有什么比客户和员工的安全更重要。”
美国联邦航空管理局（FAA）在一份声明中承认，空中交通管制的指令将507号航班置于“另一架飞机的航道上”，并表示正在对这起事件展开调查。
航空安全分析师罗伯特·萨姆沃尔特告诉哥伦比亚广播公司新闻，被称为TCAS的空中交通防撞系统是“防止飞机相撞的最后几道防线之一”。
去年夏天，哥伦比亚广播公司新闻曾在飞行模拟器中展示了TCAS的工作原理。如果一架飞机与另一架飞机的距离不安全，TCAS就会向驾驶舱发出指令。
例如，飞行员迈尔斯·摩根向我们解释道：“如果我的飞机被指示下降，那么另一架飞机就会被指示爬升，这样就能增加两者的间距。”
https://www.cbsnews.com/video/southwest-pilots-take-evasive-maneuvers-to-avoid-midair-collision-over-nashville/
2 Southwest planes came within 500 feet in close call near Nashville airport
April 20, 2026 / 8:51 PM EDT / CBS News
Two Southwest Airlines flights had a close call on Saturday near Nashville International Airport as an aborted landing brought one plane into the direct path of another jet that was taking off.
Gusty winds near the airport forced the pilots of flight 507 from Myrtle Beach, South Carolina, to abort their landing and execute a go-around at about 5:30 p.m. local time. Air traffic control told the pilots to turn right, which put them on a potential collision course with another 737 that had been cleared for takeoff from a parallel runway.
Both planes’ Traffic Collision Avoidance Systems ordered the pilots to take evasive maneuvers. Preliminary flight data appears to show the plane that was taking off, flight 1152 to Knoxville, Tennessee, essentially flew right over flight 507 with only around 500 feet of altitude between them.
Both flights landed safely at their intended desitnations.
“Southwest appreciates the professionalism of its Pilots and Flight Crews in responding to the event,” the airline said in a statement. “Nothing is more important to Southwest than the Safety of our Customers and Employees.”
The FAA in a statement acknowledged that air traffic control’s instructions put flight 507 “in the path of another airplane,” and said it was investigating the incident.
Aviation safety analyst Robert Sumwalt told CBS News that the Traffic Collision Avoidance System, known as TCAS, is “one of the last lines of defense to keep airplanes from coming together.”
Last summer, CBS News was able to see how TCAS works in a flight simulator. If a plane isn’t a safe distance from another aircraft, the TCAS would send a command to the flight deck.
For example, pilot Miles Morgan explained to us, “If my aircraft was told to descend, that [other] aircraft would be told to climb, that would increase the separation.”
https://www.cbsnews.com/video/southwest-pilots-take-evasive-maneuvers-to-avoid-midair-collision-over-nashville/