This happened in late July / early August at Liege. The aircraft was working for TNT and was impounded for at least 8 days.
It was the result of a bizarre Royal Decree signed by King Albert II at the behest of the Belgian Transport minister Isabel Durant who is vehemently trying to get rid of ageing aircraft.
It was bizarre because this aircraft was re-engined to comply with EUDOT regulations and fully legal. Apparantly it was not that it infringed noise regs on the day but more to do with the fact it was originally Stage Two.
Durant wants to outlaw all Stage Two a/c, even those which have been re-engined, hushkitted or modified to comply with the new regs. It may be that the Aer Turas a/c fell foul of this? TNT were hopping mad anyway.
CS