Perry,
89-26132 was noted by me last Thursday on ramp2 and it made engine runs in the afternoon. It's a MedEvac/Air Ambulance one. I would have guessed it was gone by now, but then again these transponders could be switched even so easily.
Anyway, I'm keeping an eye out on this thread as I might run down there again later on this week.
ps. Best place for reading them of is right between the approach lights at the 26-end/railway crossing.
HTH,
Sjoerd