From time to time, I see discussion here regarding whether cause analysis is purely "looking backward" or is it (and should it be) "looking forward" as well....
It was the "explicitness" of the IP changes, and the addition of work to our presently defined RCA process - and the realization that we do not routinely have...
Steve, I give up, what are LoQ and IP? -smile- glen -desk-806-477-4953 -pager-806-640-0649 ... It was the "explicitness" of the IP changes, and the addition of...
Ummm - easy one 1st... "IP" is for "Inspection Procedure" (the NRC docs). Now the hard one: "LoQ" is an acronym for "Line of inQuery".... :) --- Otherwise...
-smile- LoQ could be "Line of Query" with no "in"?? Reminds me, my fifth child we named "Ian", after Scandinavian family. A lady at work (TI at the time) when...
What can you send me on stream analysis? - the process and an example in its use would be helpful Brian T. Hennessy Supervisor Corrective Action Program - ...
We are using Stream for "issue analysis," not causal analysis. It helps you understand what issues/problems you are having that are drivers and which are...
Sorry, to get on again, but one other thing I needed to mention. INPO uses Stream, but they use different headers or "Stream" designations than Porras does. B....
thanks Brian T. Hennessy Supervisor Corrective Action Program - Performance Improvement * Address: Davis-Besse Nuclear Power Station 5501 North State...
I may have someone contact you later in the week - thanks for the reply Brian T. Hennessy Supervisor Corrective Action Program - Performance Improvement *...
This responds to Brian Hennessy's question on Stream Analysis. If you have more or better information please respond to this message. I would be personally...
Thanks, Bill. I was going to respond to the earlier post that suggested not using stream analysis for RCA. I find that when you are analyzing multiple events...
What's wrong with this picture? Take care, Bill Corcoran W. R. Corcoran, Ph.D., P.E. NSRC Corporation 21 Broadleaf Circle Windsor, CT 06095-1634 Voice and...
I apologize if this is a second "send." Terry and Bill, A little more detail of what we are doing. We've received Ahmad and Richards training and have used...
Bill, That first paragraph is a great example of what I see people at our site trying to mix into trending: Nature of occurrence, direct causes, and no deeper...
Bill C., Besides the obvious assigning factors as "causes", I was struck by their notion that hazardous material accidents can be prevented by having all their...
Terry, Do you have any good examples of Common Cause Analysis or Collective Significance Analysis that we could use as "templates?" Take care, Bill Corcoran W....
Bill, Here's a "sanitized" version of one I did several years ago. How good of an example it is would be up to the reader. From my perspective, it was very...
I appreciate the help - we are not asking for this information for performance of root cause analysis, rather, to help us respond to a Company Nuclear Review...
This is kind of new to us but here is what we have performed for common analysis (See attached file: CR 05-05427 ACE-CCA.pdf)(See attached file: CR 05-03723...
Hello Brian, I finally got around to looking at the attached common cause analyses. What I see is a pretty thorough gathering of related condition reports and...
I will be out of the office starting 10/12/2007 and will not return until 10/16/2007. I will respond to your message when I return. If this is an emergency, ...
Bob, My impression is that "extent of condition" was the old QC lingo. "Extent of cause" just expands it by obvious common sense to avoid "pruning the poison...
Here's an example of an ACNE for your training file. For root cause analysts an ACNE is particularly troublesome because when the rooticians don't know the...
More on the ACNE. From what you've read so far, what's wrong with this picture? Take care, Bill Corcoran W. R. Corcoran, Ph.D., P.E. NSRC Corporation 21...
Poor worker training, inadequate supervisory oversight of work in progress and probably most importantly: planning and engineering did not recognize the value...
Another good potential question - If this is not the 1st time the insulation has been removed, why this time & not previously? Steve Marrs ... From:...
Bill, I believe the "extent of condition" terminology exists from 10 CFR 50, Appendix B, Criterion 16. Its intent was to make sure generic corrective action...
If you were the NRC Inspection Team Leader what questions would you be putting on your list of Lines of Inquiry? If you were the TVA Collective Significance...
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