ML20246J139
| ML20246J139 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 08/17/1989 |
| From: | Bhargava V, Sorrell C VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| Shared Package | |
| ML20246J098 | List: |
| References | |
| CE-0020, CE-0020-R00, CE-20, CE-20-R, NUDOCS 8909050044 | |
| Download: ML20246J139 (4) | |
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TECHNICAL REPORT NO. CE-0020 REY. 0.
SAFETY. SYSTEM OUTAGE MODIFICATION INSPECTION NRC FINDING EP-2 NORTH ANNA POWER STATION, UNIT 2
.: 1 ENGINEERING MECHANICS CIVIL ENGINEERING VIRGINIA POWER AUGUST 18, 1989
'kY N-Prepared by:
V. M. Bhargava Date 4
Reviewed by : hAN 8 -/~7-8 9 D. P. Madden Date 8-/7-/9 Approved by:.
a C. E. Sorrell Date QA CATEGORY:
SAFETY RELATED
' Key Words:
SSONI NUCLEAR REGULATORY COPMISSION FINDING EP-2 8909050044 890825 PDR ADOCK 05000339 G
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TABLE OF' CONTENTS TITM PAGE 1'0'. INTRODUCTION 3
2.0 SCOPE' 3
3.0 METHODOLOGY 3
4.0 VERIFICATION AND RESULTS 4
4 5.0 t.volCLUSIO,NS 6.0 ATTACHMENTS 4
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1.0 INTRODUCTION
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In February-March 1989, NRC conducted design portion of the safety system outage modification inspection (SS0MI) for North Anna Power Station, Unit 2.
i One of the purposes of.the design portion of the SSOMI was to examine the detailed design and engineering that ware. required to support modifications implemented during the outage. SS0MI was for reviewing planned plant changes and for ascertaining if the as-modified plant remained in accordance with its licensing basis.
NRC SSOMI team identified the following "significant" item:
'"A quality control inspection report had an inadequate design evaluation and inadequate safety evaluation in that neither recognized the inappropriateness of losing one battery channel due to interaction with non-seismic hardware.
(See Appendix C Finding EP-2)."
NRC desired a review of a sample (minimum 10) of QCIR's performed in conjunction with design changes to ensure an adequate and substantiated disposition exists.
3 A copy of the relevant sheets of NRC report 50-339/89-200 is attached. See.
2.0 SCOPE The scope of this report is to document the review of a sample of (15) of QCAR/IR's (Quality Control Activity Reports / Inspection Reports) performed in conjunction with design changes to ensure an adequate and substantiated
. disposition exists. The NRC desired a review of "(minimum 10)" QCIR's.
For an explanation of the difference between a QCAR and a QCIR, see.
3.0 METHODOLOGY A sample of (15) QCAR/IR's was taken and reviewed.
The following QCAR/IR's comprised the sample:
1.
AR-N-87-176 2.
AR-N-87-98 3.
IR-N-86-510 4.
IR-N-86-139 5.
IR-N-86-149 6.
IR-N-86-231 7.
IR-N-86-239 8.
IR-N-86-238 9.
IR-N-86-218 10.
IR-N-86-236 11.
AR-N-87-08
- 12. AR-N-87-95 13.
AR-N-87-144
- 14. AR-N-87-146
- 15. AR-N-87-481 103-VMB-7287S-3
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c, w These QCAR/IR's' were individually investigated. The resulting findin' gscare l
documented below.
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'4.0 VERIFICATION-AND RESULTS During"the first screening the dispositions for all the above mentioned QCAR/IR's, excepting three were. confirmed-to be adequately substantiated; Theithree exceptions were the QCAR/IR nos. AR-N-87-98,~IR-N-86-149 and P
IR-N-86-238.
These three were: looked at more closely and their. disposition was also confirmed to be adequately substantiated..
For details refer to Attachment no. 3..
5.0 CONCLUSION
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For 80% of the-Quality Control' Activity. Reports / Inspection Reports examined, the' dispositions were.found adequately substantiated during'the-first pass.
' For the; remaining 20%, addit _ional research was conducted to assess their disposition.
In these cases, the failure to adequately reference a technical. basis at.the time of accepting the deviating conditions made.
later verification more time consuming. - But no evidence exists that' the
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design review process was compromised.
]
It-is concluded that'the dispositions for all QCAR/IR's reviewed, were
. adequately substantiated.
It is al'so concluded that the QCAR/IR's reviewed do not affect the plant;
- l it remains in accordance with its licensing basis, 6.0 ATTACHMENTS p
1 NRC letter of 6/26/89 to Mr.' W. R. Cartwright, partial.
2 Memorandum of 8/17/89-from Mr. V. M. Bhargava to Mr. - B. E. Hargrave.
3D Memorandum of 7/18/89 from Mr. J. E. Wroniewicz to Mr. R. W. Riley.
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