ML20149L189

Forwards Insp Repts 50-352/95-19 & 50-353/95-19 on 951120-1201.No Violations Noted

ML20149L189
Person / Time
Site:	Limerick
Issue date:	02/15/1996
From:	Eugene Kelly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	Danni Smith PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
Shared Package
ML20149L192	List: IR 05000352/1995019 ML20149L189
References
GL-89-10, GL-95-07, GL-95-7, NUDOCS 9602230387
Download: ML20149L189 (3)

See also: IR 05000352/1995019

Text

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Mr. D. M. Smith

Senior Vice President -

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Nuclear

PECO Energy

,

Nuclear Group Headquarters

,

Correspondence Control Desk

P. O. Box 195

Wayne, PA 19087-0195

SUBJECT:

LIMERICK MOTOR-OPERATED VALVE INSPECTION 95-19

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Dear Mr. Smith:

,

This letter transmits the results of an inspection performed between

November 20 - December 1, 1995, by Mr. D. Dempsey and others at the Limerick

Generating Station (LGS). The inspection focused on issues important to

public health and safety, specifically your program implemented in response to

NRC Generic Letter (GL) 89-10, " Safety-Related Motor-0perated Valve Testing

and Surveillance." The )reliminary inspection findings were discussed with

Mr. W. MacFarland and ot1er members of your staff on December 1, 1995.

The NRC concludes that you have implemented a program that verifies the

design-basis capability of the safety-related motor-operated valves (HOVs) at

Limerick. Detailed program specifications and useful self-assessments

'

reflected strong management support, and component engineering staff

involvement in valve maintenance has been effective.

The limited amount of site-specific, dynamic test data at Limerick underscores

your need to utilize the best data available from other industry sources in a

technically sound manner. With respect to MOV Family 19 (a group of twelve

risk-significant gate valves), we understand your intent is to obtain

additional dynamic test results for statistical significance in accordance

with the recommendations of Supplement 6 to GL 89-10. New information on

,

valve performance, such as:

(1) GL 95-07 on pressure locking and thermal

binding of gate valves; and (2) the results of the Electric Power Research

Institute's MOV testing program also will need to be assessed to ensure that

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safety-related MOVs remain capable of performing their design-basis functions.

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We are not determining the acceptability of your current program for

periodically verifying the design-basis capability of safety-related MOVs at

this time, since the NRC is preparing a generic letter to address this issue.

You should review your plans in light of the now generic letter when issued,

and consider any appropriate adjustments to your program. The NRC will review

your responses to these issues and other additional information on MOV

performance as part of future staff activities.

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9602230387 960215

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Mr. D. M. Smith

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No response to this letter is requested.

Your cooperation in these matters

was appreciated, and we would be pleased to discuss any questions you may have

concerning our conclusions.

Sincerely,

(original signed by)

Eugene M. Kelly, Chief

Systems Engineering Branch

Division of Reactor Safety

Docket Nos. 50-352; 50-353

Enclosure:

Inspection Report No. 50-352 and 353/95-19

cc w/ encl:

G. A. Hunger, Jr., Chairman, Nuclear Review Board and Director - Licensing

W. MacFarland, Vice President - Limerick Generating Station

J. L. Kantner, Regulatory Engineer - Limerick Generating Station

Secretary, Nuclear Committee of the Board

Nuclear Safety Information Center (NSIC)

Commonwealth of Pennsylvania

,

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Mr. D. M. Smith

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Distribution w/ encl:

'J. Wiggins, DRS

P. Fredrickson (RII)

J. Jacobson_(RIII DRS)

'-

C. Vandenburgh (RIV)

T. Scarbrough (NRR)

Region I Docket Room (with concurrences)

'

K. Gallagher, DRP

,

D. Screnci, PA0 (2)

3

NRC Resident Inspector

PUBLIC-

DRS Files (2)

$

' Distribution w/ encl: (Via E-Mail)

W. Dean, OEDO

F. Rinaldi, NRR

J. Stolz, PDI-2, NRR

R. Borchardt, NRR (PIPB)

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DOCUMENT NAME: A:LM951919. INS

Ta secahe a copy of tiis document, indicate in tie box: "C" = Copy without attachment

losure T = Copy witn attachment / enclosure "W = No

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DATE-

02/09/96

02/ 9 /96 M

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'4FFICIAL RECORD COPY

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