I received a corner station instrument air alarm. I called Bubba and per his instructions went out to look at the compressor in the chiller yard. One compressor had a green running light lit and the other did not. The belts on both motors were spinning. He said that this is indicative of a bypass valve failure on one of the pumps. He said as long as the other pump continued to run it should be fine and he will replace the valve in the morning. I called Chandra and left a message with her, because I believe some of the gate valves in the LVEA are controlled by this instrument air. I also called Kyle. He indicated that there is no danger to the vacuum and will make a separate alog entry.

3 hour trend attached.