More details at http://www.jacdec.de/news/news.htm .The aircraft was standing at the gate position and underwent final take-off preparations, when the jetway accidentially dropped resulting in major damage to the L1 door.
The door seperated completely and fell off the aircraft.
There were no injured persons.
The aircraft is due to be grounded for repairs for some days.
Also see http://www.airliners.net/aviation-forum ... n/5555432/