ML020880151

Chart - Indian Point 2 Lessons Learned, with Handwritten Notes

ML020880151
Person / Time
Site:	Indian Point
Issue date:	03/19/2002
From:	- No Known Affiliation
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2001-0256
Download: ML020880151 (2)

Text

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S INDIAN POINT 2 LESSONS LEARNED 4

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RECOMMENDED INDUSTRY ACTION RECOMMENDED NRC ACTION COMMENTS Action needs to be taken to

1) Management attention by

1) Include inspection data Intended to address root ensure appropriate quality of licensees, and quality in regional inspections cause of failure steam generator inspection and in HQ reviews data

2) Review and modification, "as necessary, to plant specific procedures and generic industry guidelines Increased attention is

1) Licensee management

1) Regional inspections and Intended to address issue of necessary when "new" types should provide increased HQ reviews should include understanding and taking of degradation are found attention to "new" types of assessment of "new" forms of appropriate action to manage during a steam generator degradation, degradation and adequacy of "new" degradation inspection licensee root cause and mechanisms e.g., U-bend

2) Licensees should perform corrective actions cracking and influence of root cause evaluations and denting/hourglassing.

take corrective actions for "new" types of degradation, "New" refers to a mechanism and occurring for the first time in the SG under inspection

3) Plant specific procedures similar degradation may have and industry generic occurred previously in other guidelines should be reviewed plants or steam generators and modified as necessary to assure management involvement, root cause evaluations, and corrective actions Itl

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SERs prepared by NRC NA

1) Provide guidance to Based on RES review of NRR should clearly state the bases reviewers on preparation of SER related to extending IP-2 for the conclusions reached SERs inspection schedule and clearly identify licensee information not relied upon as part of the bases Substantial limitations exist in

1) Industry guidelines for

1) Staff should be cautious in Based on RES review of NRR the ability to quantify crack performing operational crediting quantitative SER related to extending IP-2 growth rates.

assessments should be estimates of crack growth inspection schedule reviewed and modified, as rates and should utilize prior necessary, to assure that operating experience to uncertainties associated with assess their reasonableness quantitative estimates of crack growth rates are appropriately considered and that operating experience is used to assess their reasonableness Vendor /licensee interface?

Management oversight?

Limitations of ECT for Review guidelines relative to r.tc.

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4, condition monitoring?

in-situ testing Other management oversight issues?

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