Hi 3Top,
try to contact the police of Saxxon, they operate one:
Polizeihubschrauberstaffel Sachsen
Zum Windkanal 32
01109 Dresden
Germany
phone: +49 351 884 7525
If you are not successful (lack of english language on the other line), pm me and I can get you at least some information on the maintenace part.
Spunk