ML20059K601

Forwards Insp Repts 50-361/93-36 & 50-362/93-36 on 931206-10 & Notice of Deviation

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: IR 05000361/1993036 ML20059K601 ML20059K631
References
NUDOCS 9402020178
Download: ML20059K601 (3)

See also: IR 05000361/1993036

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UtMTED STATES

NUCLEAR REGULATORY COMMISSION

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REGION V

1450 MARIA LAtJE

%,,,,,[ WALNUT CREEK, CAUFORNIA 945W5368

JAN 0jG

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 i

inspection report. Within these areas, the inspection consisted of selective 1

examinations of procedures and representative records, and interviews with

personnel.

Based on the results of this inspection, certain of your activities appeared  !

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to deviate from your commitments, as specified in the enclosed Notice of l

Deviation (Notice). The deviation concerns your calculational method for MOV i

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 j

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.

We are concerned that the maintenance related deficiencies which you have I

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 )

program to assure that your MOVs are operable and maintained operable. '

Another example of this apparent weakness is discussed in Paragraph 2.1.

9402020170 940106

PDR ADOCK 05000361

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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- '

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 '

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.

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Sincerely,

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bCr

S. A. Richards, Acting Director l

Division of Reactor Safety and Projects

Enclosures:

1. Notice of Deviation

2. Inspection Report Nos. 50-361/93-36 and 50-362/93-36 )

cc: i

Mr. Edwin A. Guiles, Vice President Engineering & Operations, San Diego Gas )

and Electric Co. l

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 i

Mr. Charles B. Brinkman, Manager,. ABB Combustion Engineering Nuclear Power  :

Mr. R. W. Krieger, Vice President, Southern California Edison Company j

Mr. Don J. Womeldorf, Chief, Environmental Management Branch l

Mr. Thomas E. Bostrom, Project Manager, Bechtel Power Corporation J

Mr. Robert G. Lacy, Manager Nuclear Department

Mr. Steve Hsu, Radiologic Health Branch i

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: i

M. Smith

D. Clevenger

Myers i llue Ang(M " 6 /dC/4WO3 _ -

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7 Renawr CW n i

REQUEST REQUEST REQUEST

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