Maintenance for CRP-13

This pump was relatively new.  It was used for a while since the previous pump was found to have damaged the bore ( of the displacers).  It ran fine for a while then there was an anomalous puff of air.  It was incredibly periodic ( just under 1.5hr) and very short in time (1 sec).  This pump is now in the B2 level of the CMMS building awaiting repair.  This puff of air was corroborated by a total of 3 separate measurements; two ion gauges and an RGA.