Incident Overview
On 24 October 2005, at approximately 09:40 UTC, a Canadair CL-600-2B19 aircraft, registration D-ACJG, operated by Lufthansa CityLine GmbH on a scheduled IFR flight from Munich (EDDM) to Zurich (LSZH), experienced a strange smell in the cockpit while cruising about 20 nautical miles east of the VOR/DME TRA. The flight crew initiated an emergency diversion to Zurich. The aircraft carried two pilots, two cabin crew, and 30 passengers. No injuries were reported among crew, passengers, or third parties, and the aircraft sustained no damage.
Investigation and Cessation
The Aircraft Accident Investigation Bureau (AAIB) of Switzerland investigated the incident. The source of the smell was traced to a filter in the left air-conditioning pack. The investigation determined that a dangerous development of the situation could be excluded, as no smoke was perceptible during the flight. The crew had taken appropriate actions according to the relevant checklist. Consequently, the case did not meet the criteria for a severe incident, and the investigation was ceased. No probable cause was assigned.