Air France-KLM subsidiary Martinair has appointed Diederik Pen as its managing director, succeeding Paul Gregorowitsch who has been named chief commercial officer at Air Berlin.
Gregorowitsch will join Air Berlin on 1 September, when he will also become part of the carrier's executive board.
Pen's role as Martinair managing director took effect on 19 July. He was previously director of operations at the carrier.
Prior to joining Martinair in 2006, he held management posts at Brisbane Airport and Virgin Blue in Australia.