corey.gray@LIGO.ORG - posted 02:23, Tuesday 20 June 2017 (37011)
H1's ASC Pit Is Still Not Happy. ~0.44Hz Oscillation Breaks lock within 15min.
H1 locked back up to 70Mpc, but within 5min ASC Pit signals started to ring up at 0.44Hz. This time H1 couldn't hobble with the ASC noise & quickly dropped out of lock on its own.
Marking as CORRECTIVE MAINTENANCE again until this can be resolved.