What is the reason for KSFO PRM approaches being decommissioned? In the latest terminal procedures packet dated April 22nd all San Francisco PRM approaches have been deleted.  I haven't seen any notice from the FAA on the decommissioning and am curious what the reason is.  Is there any official documentation on the decommissioning?
Thanks
PRM approaches require recurrent crew training, additional ATC personal (you monitor a PRM controller in addition to the tower controller), and don't increase efficiency into SFO or PHL (which decommissioned their PRM years ago) that much.  Today's airports are being built with runways separated enough to allow simultaneous ILS approaches.
In short - Training cost + Personal cost &gt; operational savings.