I have been monitoring PT199 (CS instrument air pressure) periodically and it seems to be stuck at 84 psi since ~1900 hrs. local even though the MEDM time-of-day is updating.  Hmm...this is concievable but probably too good to be true.  There are known leaks in several of the pipe (copper) fittings in the LVEA so it is expected that the pressure will bleed off, albeit at a slow rate - but not this slowly. 

Evening Operator - could you please trend this signal so as to verify that it is updating?