The first post was correct. An EC135 did lose a door in flight last week. The statement that if the handle is pulled and then put back, the pins do not relocate by that action, is also correct. The pins have to be physically put back into postion by hand (little covers in the door frame have to be removed to do this).
You'll have to wait for the MOR I'm afraid.
An EC155 lost a sliding door in Hong Kong back in 2003/4. It struck the aircraft, causing the a/c to crash into the harbour with fatalities. I think it was the German Border Guard that also had a 155 door loss incident. They got away with it though.
It was suspected that this was caused by incorrect rigging of the door attachment and locking mechanism. Eurocopter issued several ASBs in the following months to check the rigging of the doors. They also incorporated 2 modifications to 'beef' up the locking mechanisms.