ML20058H277
| 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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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
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
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ADDCK 05000412
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6 1993
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Duquesne Light Company
2
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The NRC recognizes that the safety significance of the violation has minimal immediate
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impact because the plant is in an outage. Therefore, the violation is classified as severity
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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
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procedures of the Office of Management and Budget, as required by the Paperwork
Reduction Act of 1980, Public Law No.96-511.
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Sincerely,
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I
Jacque P. Durr, Chief
Engineering Branch
Division of Reactor Safety
Enclosures:
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
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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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
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G. Edison, NRR
V. McCree, OEDO
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OFFICIAL RECORD COPY
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