The INS/GPS is broken in Nevada. The jet doesn't recognize itself as being in the Western hemisphere, and all coordinates & the starting location revert to East. I'm not able to get it into the track due to track length and size issues, however I have noticed that although the steerpoints seem accurate to the incorrect waypoint, they seem to drift quite large amounts through the flight.
F-16 Nevada bug.trk
Whoops, looks like this was already reported.