| 1400 | Replaced stripline tube o-rings with new ones. New ones are made of viton and are in baggies labeled “FITS ALL OTHER 150 QC SERIES” |
|---|---|
| 1445 | Commence leak check of new stripline tube o-rings. Background leak rate of 1.3E-9 mbarL/s. During He spray test, rate spikes to 2.0E-9 mbarL/s, but spike is unrepeatable. He background rate rose to 2.0E-9 mbarL/s over the course of the spray test, but no further spikes were observed. |