If you are new to PI, you may need to check however PI admin can easily figure this out for you. There is no point in checking each and every control valve for the operating parameters.

Alright, what are the requirements mentioned in API 653? Is there any particular frequency mentioned to perform settlement survey?

Does any of the API inspection code of pressure vessels /heat exchangers calls for foundation settlement check? If yes, by what means? To perform some survey with recorded readings?

Quite clear that is.
Thanks all.

This is important.
While you perform the risk assessment, now the shutdown system cannot be assured of its performance, all these listed systems by tuan are required to be considered as available mitigations. I am not sure how are you making sure about the assurance of mitigations health?


Is this ...

I would like to add here:
The challenge is NOT technology.
It is:
Too much raw data
Poor integration
Weak interpretation
Human cognitive limits
Lack of prioritization
So the true problem is:
Digitization without intelligence creates overload instead of control.
And exactly that is what we have been ...

How could wrong dose of corrosion inhibitor play a role in foaming inside the separator, what are the consequences, and how to best avoid such situations?

I would be able to provide you with some leads where you consider working on:
Risk related to the scaffolding works may have been elevated currently at your workspace which may likely to be treated:
I would try to support by providing some pointers:
1. Elimination not attempted (job could’ve been ...

Check if you can get Instrumentation Engineers' Handbook by Bela G. Liptak.

Typically, what practices we follow are these in order:
Notification & welfare check (same day)
Basic fact capture (within 24–48h): what/when/where/type, immediate needs
Classification: OTJ vs work-related; severity tier; confidentiality level
Learning review / investigation (scaled)
Actions ...