Overfilled CP4 again:

1. Opened exhaust bypass valve
2. Doubled LLCV (66% open)
3. Took ~17 min. to fill reservoir from 92% to 100%.
4. Took another hour to see LN2 pour out the exhaust. 
5. TC 252B did not respond to temp. change (and I broke the other one yesterday)
6. Set LLCV to nominal at 32% open in manual mode after the overfill
7. Would like to see how long it takes CP to recover to 92% at nominal LLCV (but may not happen this time since it's the weekend)

I used the borescope to look at the TC junction on the exhaust to see if it's measuring the pipe or the fluid flow. I couldn't see much but I suspect it's measuring just the pipe since the time delay on CP3 is long and temps never drop below -12degC on CP3 (response is faster when heating pipe with heat gun). 

I would like to drill and tap TCs directly into the pipe and use the existing signal lines to measure a more direct temp. for CP3 automation.