University of North Dakota crashed their Citation 550 research aircraft this past fall in Alaska after a dual flame out while doing an icing certification (on a Sikorsky S-92 I believe). They say they are going to replace it; it got a quite a bit of use so I imagine it will be replaced sooner rather than later.

They also have a Cheyenne II, but it will be hittin' the road as soon as they take delievery of their new Eclipse Jet.