Vacuum pumps at End-X and CS are running fine. Temps and vacuum pressure are well within spec. 

   Found the Pump at End-Y had failed. Found the backup pump has also failed, which is very strange as it had not been run since it was tested before going into backup. There was very little carbon dust in the pump housing, which is expected in a pump that had just been put into service. Will investigate why the vanes, which were not worn had fractured. 

   Put the backup pump from End-X into service at End-Y and am ordering the necessary repair parts to get the two backup pumps back into warm standby state.