刚刚，国航通报

Core Viewpoint - A China Southern Airlines flight from Beijing to Frankfurt experienced a malfunction in the cabin oxygen mask system, leading to a safe return to Beijing [1] Group 1 - The flight CA965 returned to Beijing due to a failure in the cabin oxygen mask system, while other systems remained operational [1] - The aircraft landed safely at Beijing Capital International Airport at 11:30 AM [1] - The airline has arranged for another aircraft to carry out subsequent flight tasks and expressed gratitude to passengers for their understanding and support [1]