Reports until 09:13, Friday 05 December 2025
LHO General
tyler.guidry@LIGO.ORG - posted 09:13, Friday 05 December 2025 (88379)
FAC Recovery Post Power Outage
Following yesterdays power outage, primary FAC systems (HVAC, domestic water supply, fire alarm/suppression) all seem to be operating normally. Fire panels required acknowledgement of power supply failures, and battery backups did their job. There is an issue plaguing the supply fan drive at the FCES which revisited us this morning, but that arising from the outage is highly unlikely. Temperatures are within normal ranges in all areas. Eric continues to physically walk systems down to ensure normal operation of points in systems not visible via FMCS.

C. Soike E. Otterman R. McCarthy T. Guidry