ML20058H277

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Forwards Insp Rept 50-412/93-25 on 931018-22 & Notice of Violation
ML20058H277
Person / Time
Site: Beaver Valley
Issue date: 12/06/1993
From: Durr J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To: Sieber J
DUQUESNE LIGHT CO.
Shared Package
ML20058H286 List:
References
NUDOCS 9312130040
Download: ML20058H277 (3)


See also: IR 05000412/1993025

Text

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DEC 6 !993

Docket No. 50-412

Mr. J. D. Sieber

Senior Vice President

Nuclear Power Division

Duquesne Light Company

Post Office Box 4

Shippingport, Pennsylvania 15077

Dear Mr. Sieber:

SUIMECT: NGTICE OF VIOLATION

(NRL INSPECTION REPORT NO. 50-412/93-25)

This refers to the announced inspection conducted by Mr. Joseph Carrasco of this office

during the period of October 18-22, 1993. The inspection included a review of activities

involved in the repair and maintenance of safety Class 1 valves at Beaver Valley Unit 2.

Specific areas examined during the inspection are identified i_. the report. Within these

areas, the inspection consisted of selective examinatians of procedures and representative

records, and interviews with personnel. The purpose of the inspection was to determine

whether activities authorized by the licensee were conducted safely and in accordance with

NRC requirements.

Based on the results of this inspection, certain of your activities appeared to be in violation

of NRC requirements, as specified in the enclosed Notice of Violation (Notice). The

violation involved: (1) a failure to implement the torque value established in the repair

procedure, and (2) the failure to establish quantitative or qualitative acceptance criteria for

the applied torque related to the nuts of the body-to-bonnet studs of the air-operated valve

2CfIS-LCV460B.

This violation is of concerg to the NRC because: (a) this situation was identified by the

NRC, and (b) applying torque to the body-to-bonnet studs of a safety category 1 valve

without controlling the amount of torque, may create excessive tensile stress on the studs or

may have created an under torqued configuration.

1000:.o

9312130040 931206

{DR ADDCK 05000412 -

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DEC 6 1993 .

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Duquesne Light Company 2

'

The NRC recognizes that the safety significance of the violation has minimal immediate '

impact because the plant is in an outage. Therefore, the violation is classified as severity i

level IV, in accordance with the General Statement of Policy and Procedure for NRC

Enforcement Actions,10 CFR 2 Appendix C,1993.  ;

!

The responses directed by this letter and the enclosed Notice are not subject to the clearance i

procedures of the Office of Management and Budget, as required by the Paperwork

Reduction Act of 1980, Public Law No.96-511. j

!

Sincerely, j

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I

Jacque P. Durr, Chief

Engineering Branch

Division of Reactor Safety

Enclosures:

1. Notice of Violation

2. NRC Inspection Report No. 50-412/93-25

cc w/ encl:

G. S. Thomas, Vice President, Nuclear Services

D. E. Spoerry, Vice President, Nuclear Operations

L. R. Freeland, General Manager, Nuclear Operations Unit

i

K. D. Grada, Manager, Quality Services Unit

N. R. Tonet, Manager, Nuclear Safety Department

H. R. Caldwell, General Superintendent, Nuclear Operations ,

K. Abraham, PAO (10) SALP Reports and (2) All Inspection Reports l

Public Document Room (PDR)

1.ocal Public Document Room (LPDR)

Nuclear Safety Information Center (NSIC)

NRC Resident InsIrctor

Commonwealth of Pennsylvania

State of Ohio

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DEC 6 1993

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Duquesne Light Company 3

bec w/ encl:

Region I Docket Room (with concurrences)

W. Lazarus, DRP

D. Ixw, DRP

M. Oprendek, DRP

bec w/enel(VIA E-MAIL):

W. Butler, NRR ,

G. Edison, NRR

V. McCree, OEDO

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RI:DRS R l S R :DRS

Car $sco M s H es

9 11/ 93 II/b/93 11//(

OFFICIAL RECORD COPY

A:BV29325. INS

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