According to Hong Kong Radio Network, on January 20, a Cathay Pacific passenger plane flying from Boston, USA to Hong Kong, China needed to be rewind due to smoke from the cockpit and cabin. No passengers or crew members were injured in the incident.

Cathospital Pacific said that the incident involved was flight CX811, which was an Airbus A350 passenger plane. It was from Boston to Hong Kong today. Shortly after taking off, it received a report of smoke from the cockpit and cabin. It returned to Boston according to the established procedures. The flight has landed safely and returned to the berth, and the engineering staff conducted a detailed inspection. Cathay Pacific apologizes for the incident to affected passengers.

Previous report:

Smoke out of the cabin? A Cathay Pacific flight to Hong Kong issued an emergency code of 7700, and then circled several times before returning to Boston Airport

On January 20, 2025, a Cathay Pacific flight CX811 from Boston, USA to Hong Kong, China, shortly after the departure, the crew declared a state of emergency and issued an emergency code of 7700, and finally returned to Boston Logan International Airport (BOS).

According to flight tracking data, flight CX811 was originally scheduled to take off from Boston Logan International Airport at 01:09 am on January 20, but it was delayed by 39 minutes for some reason, and the actual departure time was 01:48. Shortly after the plane took off, the crew reported smoke in the cabin, stopped climbing and declared a state of emergency. The flight circled over the east coast of Boston to release fuel several times and finally landed safely at Boston Airport at 03:21.

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According to the British Mirror and Daily Mail, Cathay Pacific flight CX811 declared a state of emergency shortly after leaving the airport. Subsequently, according to the Flighttradar24 website, the plane stopped climbing shortly after takeoff and circled several times, as if it was releasing fuel and preparing to land.

The social media user monitoring the incident said the pilot sent out the "7700" emergency code. Anthony Ochinger, an aviation technician in Naibiro, Kenya, wrote on the X platform: "Cathospice Airbus A350-1000 (B-LXM) flight CX811 from Boston to Hong Kong is about to return to Boston 17 minutes after departure. The A350 sent an emergency code 7700. Emergency vehicles are waiting for the plane."