The shift was dedicated to maintenance started at 6:00UTC, here a list of the activity reported to the control room:

- standard vacuum refill from 7:00UTC to 11:00UTC (VAC Team);
- cleaning of central building (Ciardelli with external firm: from 7:00UTC to 10:45UTC);
- DAQ: 1&2MHz demodulations for B2_PD2 (Masserot from 7:30UTC to 8:05UTC #66396);
- SAT: install new PDU at north end (Boschi from 9:45UTC to 12:00UTC);
- ALS: checks inside central and west end buildings (DeRossi, Gosselin from 10:00UTC to 12:00UTC #66397);
- CAL: west end Ncal cabling (Mours from 7:00UTC to 11:00UTC);
- INJ: check of IMC working point and position from 7:23UTC to 7:35UTC;
- DET: OMC Lock in single bounce configuration from 6:45UTC to 6:52UTC;
          OMC scan in single bounce configuration from 6:55UTC to 7:16UTC;
- TCS: chiller check and refill (Ciardelli, Zaza 8:55UTC);
          thermal camera reference 8:35UTC;
          CO2 power check (Cifaldi 8:55UTC);

maintenance activity completed at around 12:00UTC, then we started to relocked at LOW_NOISE_2 for the commissioning activity, during the relock the DETMAIN metatron node get stuck while closing the B1 shutter, problem solved by Michal and lock acquisition restarted.