I found ITF in LOW_NOISE_3 and Science Mode, Autoscience On.
All times are UTC.
At 6:55 I put ITF DOWN for MAINTENANCE.
Cleanings at Clean Room CEB (Ciardelli, Menzione and external firm). Concluded at 10:30.
From 9:05 to 9:21 TCS Power adjustements (Cifaldi, Aiello).
At 9:31 SIB1 IP opened by Guardian intervention. Ruggi and Pinto are investigating the issue.
At 13:10 Several Gardians opened suspensions loops.
Closed SQB1_SBE, SPRB_SBE, SDB2_SBE, BS LC and F0 Guardians, PR F0 and F7 Guardians, NI F7 Guardians. SDB1 Guardians.
SR and SDB1 have stages stuck, SAT is working to solve it.

Activities related to NEB shutdown for UPS replacement:
- 6:59 SNEB SBE/LC, NCal Opened (Masserot);
- 7:14 Camera off (Gouaty);
- 7:22 ALS BPC Open (Casanueva);
- 7:28 VAC devices swich-off and large valve closed (Francescon);
-  7:42 ALS off (Casanueva/De Rossi);
- 7:42 Suspensions Loops Open (Boschi);
- 7:45 Internet access point down, Kraja to go to NE to solve the problem. A switch was turned off;
- 7:45 NNC/EMS off (Tringali);
- 7:55 CAL switch off PCal (Melo);
- 8:07 SAT & PAY switch off (Piendibene);
- 8:32/8:33 NE/WE Ringh Heater turned off (Lumaca, Tringali, Aiello, #68331);
- 8:40 SBE, DET, DAQ switch off (Berni);
- 8:47 Network switches switch off (Bersanetti);
- 8:55 Shutdown completed. Start of UPS replacement.
I paused some Metatron nodes to avoid spam of messaged in the logs.
UPS replacement concluded at 11:28. Recovery started at 12:20.
Activities related to NEB recovery comunicated to the operator:
-12:30 Network and DAQ  on (Berni);
- 13:09/13:10 NE/WE RH switched ON (Lumaca, Tringali, Aiello, #68335);

Periodic tasks during maintenance:
- 7:24 TCS Chiller refill (Menzione, Ciardelli);
- OMC scan/lock in single bounce (skipped as instructed by experts);
- From 8:10 to 8:20 TCS Thermal Camera Reference (operator);
- From 8:33 to 8:47 TCS Power Checks (operator);
TCS CO2 Power Checks (measured at CH Pickoff):