Once aboard they found that the wreck was a part of an asteroid. The entire bridge, couple of decks, and much of the hull had been cut apart by Mi Go particle beam weapons! There were a few systems worth salvaging like the lighting mantle, the nav. computer systems, and two of the engines. There were also several rooms sealed off where suit chewers were lurking.
They came across a Mi Go Brigand class light assault mech with its bio drives in tact but the human brain that was the heart and soul of the thing was completely gone. They got a star chart, some raw data, and the thing's log with complete descriptions of some of the Mi Go's weapon systems.
The phraint were more then happy to share dry dock space with the PC's ship in exchange for some of the data recovered by the PC's.