SK1684 - Incident: Cityjet CRJ9 near Zurich on Oct 6th 2025

A Cityjet Canadair CRJ-900 on behalf of SAS Scandinavian Airlines, registration EI-HSE performing flight SK-1684 from Milan Malpensa (Italy) to Copenhagen (Denmark) with 91 people on board, was enroute at FL340 about 20nm east of Zurich (Switzerland) when the crew declared Mayday, Mayday, Mayday reporting smoke in the cabin and requested an emergency descent. ATC cleared them to FL250 maintaining present heading at first. The aircraft subsequently positioned for an approach to Zurich's runway 16 and landed safely on that runway about 20 minutes after leaving FL340. The crew vacated the runway and stopped on the taxiway requested emergency service to check for any smoke visible on the outside of the aircraft. The crew advised that everything looked okay in the inside of the aircraft, and the aircraft taxied to the apron about 3 minutes later

The occurrence aircraft remained on the ground in Zurich for about 47 hours, then positioned to Copenhagen.