Start N2 loop @ 9:56 Load and vent CA07288 Start CA07288 loop @ 10:58 Start 2nd CA07288 loop @ 10:58 N2 loop @ 12:33 Load and vent CC82631. Loop starting @ 14:08 N2 loop @ 15:34 'b' removed first CA07088 loop: Valve not opened. Flow drops off.