Why is the Noble Discoverer Still Docked in Seward?

Noble Discoverer's position 12/01/2013

I don't know.  Do you?

After their farcical 2012 drilling season ended in late October, Shell Alaska wanted to move both their drill rigs, the half-century old Noble Discoverer and the 30-year-old Kulluk, to Puget Sound.

We know they had engaged a firm to do maintenance on at least one of them in Everett, Washington.  We don't know what they were going to do, though.

Since November, the Noble Discoverer has been in the port of Seward.  They aborted their Dutch Harbor to Seattle trip because the vessel was encountering problems. Upon inspection in Seward by the U.S. Coast Guard, the rig was impounded.  A criminal investigation is underway.   The crew has been provided attorneys.

And the rig, according to Shell and others, is clear to continue its odyssey to that notorious tax haven, Washington state.  Presumably, now that the Vigor-contracted facilities in Everett won't be seeing the Kulluk any time in the next week or so, the Noble Discoverer could pull right in there and get fixed up.

Right?

Noble Discoverer in better days

Why not?

Why the hell is the Noble Discoverer still here?

Shell's 2012 drilling season may qualify for several Guinness Book of World Records entries - most expensive training session, most holes drilled above 70 degrees North for nothing, most energy company hubris - who knows what else?