Reports until 14:34, Tuesday 30 April 2024
LHO FMCS (PEM)
ibrahim.abouelfettouh@LIGO.ORG - posted 14:34, Tuesday 30 April 2024 (77519)
HVAC Fan Vibrometers Check - FAMIS 26299

Closes FAMIS 26299, last checked in alog 77457

Corner Station Fans (Screenshot 1)

- No notable increases in noise beyond threshold.

- Around 4.5 days ago, what looks to be a restart occured in all fans. Notably:

Outbuilding Fans ( Screenshot 2)

- No notable increases in noise beyond threshold.

- MX_FAN1_370 still producing pulses of higher and lower noise (long standing feature since at least alog 76942 (April 3 2024)

- MY FAN 1 was turned on while FAN 2 was turned off. MX Fan 2 was turned on while FAN 1 was turned off. This is expected and logged through Tyler's WP 11819, which is the "Quarterly lubrication of Axivane fans".

Images attached to this report