TITLE: 08/27 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC STATE of H1: Observing at 118Mpc INCOMING OPERATOR: Corey SHIFT SUMMARY: Lock loss shortly before start of maintenance. End X HEPI pump tripped, motor may need to be replaced, currently running above nominal. TCSY laser tripped off, temperature alarm. Cheryl and Betsy turned it back on. Jeff K. ran through initial alignment. Only intervention to relock was to lock PRMI. LOG: 14:38 UTC Lock loss 14:47 UTC Richard to end Y then end X, moving camera equipment 14:58 UTC Chandra and Matt to LVEA to look at viewport 15:02 UTC Jeff B. to end Y, end X, and HEPI mezzanine (dust monitors and HEPI pumps) 15:09 UTC Matt back, viewport cover replaced 15:13 UTC Chris moving snorkel lift, working on gutters near Corey's office 15:14 UTC Karen to end Y 15:19 UTC Cheryl running transfer functions on IM2 15:23 UTC Reuters through gate 15:28 UTC Gerardo to LVEA 15:29 UTC Matt to LVEA to clean up cables 15:31 UTC end X illuminator turned on 15:31 UTC ** end X HEPI pump tripped ** 15:33 UTC Filiberto installing network switch in MSR 15:36 UTC Reuters in control room 15:45 UTC Cheryl transitioning LVEA to laser safe 15:56 UTC Marc to LVEA, phase noise measurements 16:00 UTC Cheryl done, LVEA laser safe 16:01 UTC Karen leaving end Y 16:01 UTC Filiberto done 16:01 UTC Richard back 16:03 UTC Filiberto to CER, isolating SUS racks 16:08 UTC Peter to LVEA to look at HAM3 16:09 UTC Richard to CER 16:14 UTC Mike and Reuters to LVEA 16:16 UTC Jim and Jeff B. to end X 16:16 UTC Peter done 16:27 UTC Chandra to LVEA 16:39 UTC Dick to CER 16:56 UTC Mike and Reuters back from LVEA, driving down arm 17:11 UTC ** Verbal alarm: TCSY CO2 laser output off. RTD/IR SENS. ALARM is red. FLOW ALARM is green. Cheryl and Betsy reset it. ** 17:12 UTC Gerardo back 17:31 UTC Matt back from LVEA 17:31 UTC Kara to end X 17:34 UTC Matt to high bay 17:40 UTC LN2 delivery 17:41 UTC Jeff to CER 17:50 UTC Matt back 18:12 UTC Kara to electronics bay 18:14 UTC Paradise Water through gate 18:16 UTC Tyler to mid stations 18:20 UTC Christina to end Y, mid X 18:26 UTC end X illuminator off 18:46 UTC Restart of FMCS IOC computer 18:56 UTC Tyler back 18:59 UTC Kyle, Chandra, and Gerardo out of LVEA 19:19 UTC Mike and Reuters done 19:38 UTC Changed observatory mode to corrective maintenance for HEPI pump recovery 20:04 UTC Peter to optics lab 20:15 UTC Jeff B. to cleaning area 20:18 UTC Jeff B. done 20:46 UTC Initial alignment done 21:48 UTC NLN. Commisioning. 22:15 UTC Jeff B. moving equip from OSB receiving to mechanical room 22:29 UTC Jeff B. done 22:37 UTC Observing