Scott L. Ed P. Chris S.
4/29/15 the crew clean 61.7 meters ending 7.6 meters north of HNW-4-021. Test results posted here. Removed lights and relocated to next tube section.


Ed P. Chris S. Joe D. Cris M.
4/30/15 the crew cleaned 49.3 meters ending 10 meters north of HNW-4-024.


Ed P. Chris S.
5/1/15 - 49 meters cleaned ending at HNW-4-027.
 

Beam tube pressures are continually monitored during cleaning operations by control room operator.