RUAG Aviation has been officially authorised to perform the full range of maintenance, repair, overhaul (MRO) and upgrade services for the McDonnell Douglas MD 500, MD 600 and MD 900 helicopter series.

The Maintenance Organisation Exposition (MOE) rating was received in June 2013 and covers services for the MD 500E, MD 520N, MD 530E, MD 600N and MD 900 Explorer.