Hi guys,
328 Support Services in Germany is the Type Certificateholder of the Dornier 328.
Homepage:
Relocate
You'll find the Customer Support Manual with all needed information on Spare Parts / Technical Help Desk and AOG Services here:
328support GmbH | Customer Support Material
In any case it's possible to contact the Global Support Centre:
328support GmbH | Global Support Centre
Greets from Germany