"During this preliminary investigation, we are collecting data that helps us understand and classify the incident," writes Carsten Trige Pedersen in an email to TT.
The incident is being investigated in Denmark because the plane was over Greenland, which belongs to Denmark, when it was forced to turn back after being hit by severe turbulence.
The plane is still in Denmark, where it flew directly after the incident.
"The plane is currently in Copenhagen and is undergoing a routine mandatory inspection. It will return to traffic after this inspection is completed. SAS has no further details to share," writes the airline's press chief Pia Herrera to TT.
SAS has previously stated that the more than 250 passengers on board were never in danger.
