ML20059K601
| ML20059K601 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 01/06/1994 |
| From: | Richards S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Ray H SOUTHERN NUCLEAR OPERATING CO. |
| Shared Package | |
| ML20059K602 | List: |
| References | |
| NUDOCS 9402020178 | |
| Download: ML20059K601 (3) | |
See also: IR 05000361/1993036
Text
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NUCLEAR REGULATORY COMMISSION
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REGION V
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1450 MARIA LAtJE
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WALNUT CREEK, CAUFORNIA 945W5368
JAN
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Docket Nos.
50-361 and 50-362
License Nos. NPF-10 and NPF-15
Southern California Edison Company
Irvine Operations Center
23 Parker Street
Irvine, California 92718
Attention: Mr. Harold B. Ray
Senior Vice President, Power Systems
SUBJECT:
NOTICE OF DEVIATION
INSPECTION REPORT N05. 50-361/93-36 AND 50-362/93-36
This letter refers to the inspection conducted by Mr. C. Myers of this office,
during the period of December 6 through 10, 1993, of activities authorized by
NRC License Nos. NPF-10 and NPF-15, and to the discussion of our findings held
with members of your staff on December 10, 1993.
Specific areas examined during this inspection are described in the enclosed
inspection report. Within these areas, the inspection consisted of selective
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examinations of procedures and representative records, and interviews with
personnel.
Based on the results of this inspection, certain of your activities appeared
to deviate from your commitments, as specified in the enclosed Notice of
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Deviation (Notice). The deviation concerns your calculational method for MOV
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capability under degraded voltage conditions.
In addition, a violation
concerning MOVs reported to be inoperable is not being cited due to your self-
,
identification and adequate corrective actions. The violation is not being
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cited because it meets the enforcement criteria of 10 CFR Part 2, Appendix C,
VII.B.
1
Paragraph 2.7 of this report discusses recent maintenance related deficiencies
observed with motor operated valve (MOV) 3HV-6371. The valve internals were
found to be damaged apparently due to prior misassembly.
Your staff was
conducting a maintenance division investigation of the cause of the observed
problems. Repeated indications of significant abnormal MOV operation were
displayed during diagnostic testing of this valve dating back to March 1992.
I
We are concerned that the maintenance related deficiencies which you have
identified in 3HV-6371, and the apparent delay in addressing abnormal . testing
results with that valve, appear to be another example of a weakness in your
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program to assure that your MOVs are operable and maintained operable.
'
Another example of this apparent weakness is discussed in Paragraph 2.1.
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9402020170 940106
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You are requested to respond to this letter and should follow the instructions
specified in the enclosed Notice when preparing your response.
In your-
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response, you should document-the specific action taken and any additional
actions you plan to prevent recurrence.
The response requested by this letter is not subject to the clearance
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procedures of the Office of Management and Budget as required by the Paperwork-
Reduction Act of 1980, Pub. L. No.96-511.
In accordance with 10 CFR 2.790(a), a copy of this letter and enclosure will be placed in the NRC Public
Document Room.
Should you have any questions concerning this inspection, we will be pleased
to discuss them with you.
'
Sincerely,
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bCr
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S. A. Richards, Acting Director
Division of Reactor Safety and Projects
Enclosures:
1.
Notice of Deviation
2.
Inspection Report Nos. 50-361/93-36 and 50-362/93-36
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cc:
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Mr. Edwin A. Guiles, Vice President Engineering & Operations, San Diego Gas
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and Electric Co.
T. E. Oubre, Esq., Southern California Edison Company
"
Chairman, Board of Supervisors, County of San Diego
Mr. Sherwin Harris, Resource. Project Manager, Public Utilities Department
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Mr. Charles B. Brinkman, Manager,. ABB Combustion Engineering Nuclear Power
Mr. R. W. Krieger, Vice President, Southern California Edison Company
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Mr. Don J. Womeldorf, Chief, Environmental Management Branch
Mr. Thomas E. Bostrom, Project Manager, Bechtel Power Corporation
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Mr. Robert G. Lacy, Manager Nuclear Department
Mr. Steve Hsu, Radiologic Health Branch
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Mayor, City of San Clemente
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JAN " 61994
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bec w/ enclosure:
Docket File
Resident Inspector
Project Inspector
G. Coak
,
B. Faulkenoerry
K. Perkins
S. Richards
J. Norberg, NRR
G. Johnson, NRR
T. Scarbrough, NRR
M. Fields, Project Manager,NRR
bec w/o enclosure:
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M. Smith
D. Clevenger
Myers
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REQUEST
REQUEST
REQUEST
COPY
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NO O
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SEND TO DCS
SEND TO POR
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