尽管美国联邦航空管理局（FAA）已解除让所有飞机停飞的命令，但加拿大空中领航公司（NAV Canada）表示，多伦多皮尔逊国际机场的延误情况周五晚间可能仍会持续。
Delays at Toronto Pearson International Airport may continue Friday night despite an order that grounded all planes in the U.S. was lifted, NAV Canada says.
加拿大空中领航公司——这家监管加拿大空中交通管制员的非营利组织——周五晚间在社交媒体平台X上发帖称，将继续确保加拿大领空内的“空中交通安全高效运行”。
In a social media post on X on Friday night, NAV Canada, the non-profit overseeing the country's air traffic controllers, said it will continue to keep "air traffic moving safely and efficiently" in Canadian airspace.
该非营利组织表示：“在运营恢复正常和积压航班清理期间，部分延误可能仍会持续。建议乘客向其航空公司查询航班状态。”
"Some delays may continue while operations return to normal and backlogs are cleared. Passengers are encouraged to check the status of their flight with their airline," the non-profit said.
美国联邦航空管理局因区域空中交通管制中心出现通信问题，于周五下午发布了停飞令。该停飞令在晚上9点前不久解除。
The U.S. Federal Aviation Administration (FAA) issued a ground stop on Friday afternoon due to communications problems at regional air traffic control centres. The ground stop was lifted shortly before 9 p.m.
多伦多皮尔逊机场表示，在停飞令发布后，周五暂停了往返美国的航班。这在皮尔逊机场引发了混乱，至少有一名乘客表示，该情况让她感到恐惧。
Toronto Pearson Airport said it suspended flights to and from the U.S. on Friday after the ground stop was issued. It caused confusion at Pearson, with at least one passenger saying the situation left her frightened.
早些时候，加拿大空中领航公司曾表示，已在多伦多皮尔逊、蒙特利尔特鲁多、卡尔加里和温哥华机场实施了交通管理措施，以安全管理空中交通，并正在密切关注停飞令。
Earlier, NAV Canada had said it had implemented traffic management measures at Toronto Pearson, Montréal Trudeau, Calgary and Vancouver airports to manage traffic safely and was closely monitoring the ground stop.
但在下午6点刚过，该公司发帖称，已实施的交通管理措施已解除。
But shortly after 6 p.m., it posted that the traffic management measures put in place were lifted.
皮尔逊机场周五下午在一份声明中表示，计划中的飞往美国的出港和入港航班均未执行。它建议乘客在前往机场前，直接向其航空公司查询最新航班信息。
In a statement Friday afternoon, Pearson said scheduled U.S.-bound departures and arrivals were not proceeding. It advised passengers to check directly with their airlines for the latest flight information before heading to the airport.
与此同时，比利·毕晓普多伦多城市机场也建议其乘客直接联系航空公司，获取最新的航班状态、延误和取消信息。它表示，预计周五晚间不会接收任何从美国改道的航班。
Billy Bishop Toronto City Airport, meanwhile, also advised its passengers to contact their airlines directly for the latest information on flight status, delays and cancellations. It said it didn't anticipate receiving any diverted flights from the U.S. Friday evening.
联邦交通部长史蒂文·麦金农在社交媒体平台 X 上发帖称，联邦政府正在“密切关注事态发展”，并与 NAV Canada 保持联系。
Federal Transport Minister Steven McKinnon had said in a social media post on X that the federal government was "monitoring the situation closely" and remained in contact with NAV Canada.
麦金农表示：“虽然加拿大系统运行正常，但由于实施了地面停飞，前往美国的航班可能会受到干扰。我们将继续监测事态发展，并与相关当局保持联系。”
"While Canadian systems are operating normally, travel to the United States may be disrupted as a result of the ground stops," McKinnon said. "We will continue to monitor developments as the situation evolves and remain in contact with the relevant authorities."
约翰·C·芒罗汉密尔顿国际机场在一封电子邮件中表示：“目前，汉密尔顿国际机场的运营未受影响，航班按计划运行。”
In an email, John C. Munro Hamilton International Airport had said: "At this time, there are no impacts to operations at Hamilton International and flights are operating as scheduled."
航空专家称“这是一场重大、重大的中断” 麦吉尔大学运营与综合航空管理教授约翰·格拉德克周五在接受 CBC Radio 采访时表示，通信问题意味着飞机必须尽快着陆。
'It's a major, major disruption,' aviation expert says John Gradek, an operations and integrated aviation management professor at McGill University, told CBC Radio's on Friday that communications problems mean that airplanes have to land as soon as possible.
格拉德克说：“如果空管与航空公司之间没有通信，可能会发生事故。”
"If there is no communication between the air traffic controllers and the airlines, we have accidents that could possibly happen," Gradek said.
格拉德克表示，由于有备份系统，这类通信问题按理说不应该发生。
Gradek said these kind of communications problems are not supposed to happen because there are backup systems in place.
格拉德克说，自美国“9·11”恐怖袭击以来，他还没见过这种情况，当时全球空域完全关闭，飞机必须迅速落地。
Gradek said he hadn't seen something like this since the Sept. 11 terror attacks in the U.S., when there was total shutdown of air space worldwide and planes had to get on the ground quickly.
他说：“情况不像‘9·11’那么糟，但这仍然是一场重大、重大的中断。今晚将有成百上千人的行程受阻。”
"It's not as bad as 9/11, but it's still a major, major disruption. You are going to have hundreds of thousands of people whose trips will be interrupted tonight," he said.
格拉德克表示，这对加拿大国内及国际航班、飞越美国领空的航班，以及往返美国的航班都有影响。“这是在打断整个北美空域的运行。”
Gradek said there were implications for domestic and international services from Canada that are flying over U.S. airspace as well as flights to and from the U.S. "This is interrupting the whole of North American airspace."
航空公司将不得不重新编排时刻表，专家称 航空分析师、加拿大航空前首席运营官邓肯·迪在接受 CBC Radio 采访时表示，他认为地面停飞将对旅客和航空公司产生连锁反应。
Airlines will have to reassemble schedules, expert says Duncan Dee, an aviation analyst and the former chief operating officer for Air Canada, told CBC Radio's he thinks the ground stop will have a ripple effect on travellers and airlines.
许多旅客将不得不寻找住宿地点，如果他们的航班受到干扰，还得想办法回家；而飞机将被迫停飞在本不该停留的地方，他说。
Many travellers will have to find somewhere to stay if their flights were interrupted and will have to find a way home, while airplanes will have been grounded in places where they are not supposed to be, he said.
“因此，航空公司将不得不在不知道未来几小时会发生什么的情况下重新编排航班时刻表。”
"So airlines are going to have to reassemble their schedules not knowing what's going to happen over the next few hours."
在局势变得更清晰之前，迪说，目前尚不清楚是否会对加拿大造成重大影响，“仅仅是因为我们的航空运输系统非常依赖进入美国领空的通道。”迪于2012年从该航空公司退休，他补充说，他认为联邦航空管理局（FAA）决定停飞航班是正确的，因为在追踪飞机在空中可能的位置方面，没有任何容错余地。
Until the situation becomes clearer, Dee said it's unclear if there would be a major impact on Canada, "just because we rely so heavily on access to U.S. airspace in our air transportation system." Dee, who retired from the airline in 2012, added that he thinks the FAA made the right decision in grounding flights because there is no margin for error when it comes to tracking where a plane might be in the air.
“当联邦航空管理局出于极度谨慎的安全考虑发布这种停飞令时，很可能意味着主系统和他们拥有的任何备用系统都失效了，或者不可靠到不足以使用，”迪说。
"When the FAA issues a ground stop like this out of an abundance of caution for safety, it likely means both the main system and any backup systems that they had failed or were not reliable enough," Dee said.