Summary of the data quality shift for Monday March 13 to Wednesday March 15, 2017 (inclusive):

• Excellent duty cycle of 75.44% overall. Monday 3/13 and Tuesday 3/14 were very stable and uneventful up to the start of planned maintenance, which took place during the late afternoon and evening on Tuesday.
• During the maintenance window, flow sensors for the laser head were replaced which will hopefully help prevent lock loss from PSL tripping.
• Wednesday 3/15 saw high winds which generated ground motion and affected the BNS range.  
• PI modes caused two lock losses on Wednesday 3/15.
• Nothing else appears to stand out from this shift; it was a pretty quiet couple of days overall.
• The full data quality shift report can be found here: https://wiki.ligo.org/DetChar/DataQuality/DQShiftLHO20170313