SAS Scandinavian Airlines (SK, Copenhagen Kastrup) has announced it has resumed its regular flight schedule after it temporarily grounded eighteen A320-200Ns at the weekend for a routine inspection of pressure regulator transmitters, a component responsible for monitoring and adjusting cabin pressure in mid-flight.

In a service announcement on Sunday, March 24, the airline confirmed it had resumed its regular schedules after it inspected the components on some of its aircraft, causing traffic disruptions on parts of its network on March 23. It said affected passengers were notified via email or SMS.

The airline was not immediately available to comment further.

A spokesperson told the Danish broadcaster DR on March 23 that the situation emanated from a routine maintenance check and that "the need to inspect a pressure regulator transmitter component on some of our aircraft unfortunately means that operations are paused with these aircraft, which in turn causes traffic disruptions in parts of our network," adding that passengers were not exposed to any risk.

The grounding reportedly affected about 7% of the airline's schedule on Saturday, including flights across Norway, Sweden, and Denmark and destinations such as Malaga, Tenerife Sur, Gran Canaria, London Heathrow, Zurich, Stavanger, Tromsø and Kristiansand.

According to the ch-aviation fleets module, SAS operates a fleet of sixty-seven A320-200Ns, of which thirty-eight are in active service.