Core Points - On November 7, a flight from Beijing to Guangzhou (CA1339) returned to Beijing shortly after takeoff due to airline reasons [1] - The flight was scheduled to depart at 12:00 PM and arrive at 3:25 PM, but it actually took off at 12:30 PM and landed at 6:45 PM [1] - The flight reached an altitude of approximately 9,000 meters before descending and returning to Beijing at 1:20 PM, then took off again at 3:49 PM after a delay of about 2 hours and 30 minutes [1] - The flight was operated by a different aircraft, an Airbus A330-343X, as indicated by flight tracking apps [1]

Core Points - On November 7, a flight from Beijing to Guangzhou (CA1339) returned to Beijing after takeoff, flying at an altitude of approximately 9,000 meters before descending [1] - The flight took off again after approximately 2 hours and 30 minutes of ground time, with a change to another aircraft, an Airbus A330-343X [1] - The reason for the return was attributed to the airline's internal issues, with no further details available from the airline's customer service [1]