According to several newspapers they will be laying off 230 employees, mostly cabin crew, but also flight crew. Not only as a result of grounding the Dash Q400 aircraft but also because there have been too many cabin crew for some time.
Must be quite a shock for those involved. I don't think SAS Sweden has layed off any flight staff for years and should now be looking at those that were employed in year 2000 and previously (speaking of cabin crew now).