Seems it was a Swiss registered 7X landing at Supang - rumour control is aircraft was descending - when the runaway trim problems caused the aircraft to climb 12,000 feet??
Aircraft declared an emergency.
Press quotes Dassault asking for the grounding by German based EASA - but I'll assume there is far more to that??
There have been a couple of Citation runway trim accidents, and a couple more suspected - last confirmed one was N550BP the Marlin Air Medevac that crashed into Lake Michigan in June 2007.http://aviation-safety.net/database/rec ... 20070604-0