In February 2024, a Lufthansa flight from Frankfurt to Seville experienced an unexpected incident when the captain left the cockpit for a bathroom break and returned to find the co-pilot unconscious. This situation has prompted discussions within the aviation industry regarding early detection of pilot incapacitation and potential preventative measures.
Lufthansa, a major German airline and part of the Star Alliance, operates globally with hubs in Frankfurt and Munich. The incident involved Lufthansa Flight 1140, an Airbus A321-200 series aircraft, which departed from Frankfurt at 08:39. While en route, the co-pilot became incapacitated eight minutes after being left alone in the cockpit. According to Spain's Ministry of Transport's incident report, during this period, switches were inadvertently operated by the co-pilot.
Before leaving the cockpit, the captain had noted that the first officer was "fit and attentive." However, once alone, air traffic control detected unresponsiveness from the co-pilot and made three unsuccessful attempts to contact him. Upon returning, it took five attempts for the captain to open the cockpit door using an emergency code. Fortunately, among the 199 passengers on board was a doctor who provided first aid until they safely diverted to Madrid.