周日，由于超过四个小时的航班停飞令对航空公司运营的影响持续产生回荡，出行混乱已进入第三天。
Travel disruption stretched into a third day Sunday as the effects of a more than four-hour groundstop continued to reverberate through airline operations.
各航空公司在周末期间一直在进行善后和重新安排航班计划。但出行依然艰难。
Carriers have spent the weekend piecing themselves back together and rebuilding their schedules. But travel is still tough.
对旅客而言，这是一个缓慢且令人沮丧的过程。这是今年出行最糟糕的几天之一，堪比1月席卷全国大片地区的严冬风暴。
For travelers, it has been a slow and frustrating process. It has been one of the worst couple of days for travel this year, rivaling a severe winter storm that blasted huge swaths of the country in January.
周五有超过9000架次航班被取消。周六的情况略好一些：有6600架次航班被取消。截至周日上午，又有1300架次航班被取消。
More than 9,000 flights were canceled Friday. Saturday was only somewhat better: 6,600 flights were scrubbed. Another 1,300 were canceled as of Sunday morning.
航空公司在周末努力为旅客重新安排行程。例如，美国航空表示，该公司设定了票价上限并增加了额外航班。但各航空公司仍警告称，恢复正常需要一些时间。达美航空建议行程安排灵活的旅客将出行推迟至周一或更晚。
Airlines worked to reaccommodate fliers over the weekend. American Airlines, for example, said it capped fares and added extra flights. But carriers still cautioned that recovery would take some time. Delta advised travelers with flexible plans to delay travel until Monday or later.
航空公司对混乱习以为常，在暴风雪、雷暴以及自身的科技故障之后，也会经历类似的恢复过程。但周五的停飞令在规模和持续时间上几乎没有先例。
Airlines are accustomed to disruptions and go through a similar recovery process after blizzards, thunderstorms and their own technology snafus. But Friday’s groundstop has little precedent in scope and duration.
美国航空首席客户官海瑟·加博登在周六致受停飞令影响人员的一封信中写道：“这是美国航空经历过的影响最重大的运营事故之一。”
“This is among the most significant operational impacts American has experienced,” Heather Garboden, American’s chief customer officer, wrote in a letter Saturday to those affected by the groundstop.
联邦航空管理局下令暂停所有航班起飞，是为了应对空中交通管制员用于引导飞行员穿越国家领空的老旧系统内部出现的问题。
The Federal Aviation Administration’s move to halt all flight departures came in response to problems within the outdated system that air-traffic controllers use to guide pilots through the nation’s airspace.
寻找问题根源的联邦航空管理局官员将焦点锁定在阿肯色州的一个地点，那里一个新安装的路由器开始以极高的频率向网络发送ping信号，从而使系统超载。
FAA officials looking for the root of the issue zoomed in on a site in Arkansas, where a newly installed router began to ping the network at a very high rate, overloading the system.
联邦航空管理局尚不清楚该路由器为何出现异常。交通部长肖恩·达菲表示，该机构正将重点放在该设备本身的机械问题上，或者是负责监管被称为FTI的通信系统的L3Harris Technologies公司的“无能”。L3Harris的一位女发言人表示，该公司正全力支持该机构的调查。
The FAA doesn’t know why the router went rogue. Transportation Secretary Sean Duffy said the agency was zeroing in on a mechanical problem with the device itself or “incompetence” by L3Harris Technologies, which oversees the communications system known as FTI. An L3Harris spokeswoman said the company is supporting the agency’s probe.
FTI目前正在进行价值数十亿美元的升级。达菲表示，在2028年底前将系统中的所有铜线替换为光纤之前，可能会出现更多混乱。
FTI is undergoing a multibillion-dollar upgrade. Duffy said that until all copper wires in the system are replaced with fiber at the end of 2028, more disruptions could come.
周五漫长的航班停飞导致数千架飞机和机组人员无法按计划执行接下来的航班。一些航班被取消，根本未能起飞。由于拥挤的机场没有停放空间，其他航班则折返或分流至备降地点。
Friday’s lengthy flight halt left thousands of planes and crew members out of place for their next flights. Some flights were scrubbed and never made it off the ground. Others turned back or diverted to alternative locations because overwhelmed airports didn’t have space for them.
飞行员和空乘人员也达到了工作时间上限，无法立即被安排再次工作。这引发了一场寻找替代人员的争夺战。
Pilots and flight attendants also hit limits on how long they can work and couldn’t immediately be scheduled to work again. That set off a scramble for replacements.
航空公司为特定航班提供额外报酬，以激励待命的飞行员接飞航班，并竞相寻找酒店房间。美国航空允许上下班通勤的飞行员和空乘人员预订确定的座位，而不是去碰运气的候补。
Airlines offered additional pay for certain flights as an incentive for available pilots to pick up flights and raced to find hotel rooms. American allowed pilots and flight attendants commuting to work to book confirmed seats rather than chancing it on standby.