A Swiss Air flight traveling from Zurich to New York made an unscheduled emergency landing in Bangor, Maine on July 27th, 2026. The incident was triggered by smoke detected in the business-class cabin. Investigations revealed the source of the smoke was a damaged lithium battery within a headphone-charging case. The case had become trapped and crushed under a seat, leading to overheating. Fortunately, no injuries were reported as a result of the incident. The event highlights potential risks associated with damaged lithium batteries on aircraft. Airline officials are reviewing safety protocols related to personal electronic devices and their charging accessories.