See my ticket #699106. The response I received was that it is currently impossible to remove/delete these items. Even for a GM.
Excuse me for ranting a moment, but how the hell can it be impossible for a GM to delete an item from the internal databases? Would it risk causing a tear in the space-time continuum or something? I understand that it's difficult or even impossible to ADD items to a person's inventory in the case of lost items, but these are items that we cannot delete - they are STUCK and nobody, not even the original owners, can interact with them in any way.
There are TWELVE of them in Jupiter Force's fleet bank, and they have been there since within a day of launch.
Why is this issue remaining unresolved, after such a long period of time? I'm sure that we're not the only fleet affected by this little feature.