ML14178A127

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Forwards MOV Team Insp Rept 50-261/91-201 on 910610-14. Weaknesses Noted:Failure to Properly Document & Evaluate Discrepant Conditions Found on Two safety-related MOVs
ML14178A127
Person / Time
Site: Robinson Duke Energy icon.png
Issue date: 07/25/1991
From: Varga S
Office of Nuclear Reactor Regulation
To: Eury L
Carolina Power & Light Co
Shared Package
ML14178A128 List:
References
GL-89-010 NUDOCS 9108010056
Download: ML14178A127 (4)


See also: IR 05000261/1991201

Text

0

UNITED STATES

NUCLEAR REGULATORY COMMISSION

c,

WASHINGTON, D.C. 20555

July 25, 1991

Docket No.: 50-261

Mr. Lynn W. Eury

Executive Vice President

Power Supply

Carolina Power & Light Company

P.O. Box 1551

Raleigh, North Carolina 27602

Dear Mr. Eury:

SUBJECT:

CORPORATE/H. B. ROBINSON UNIT NO. 2 MOTOR OPERATED VALVE INSPECTION

(NRC INSPECTION REPORT 50-261/91-201)

We are forwarding the report of the motor-operated valve (MOV) team inspection

conducted by the U. S. Nuclear Regulatory Commission's (NRC's) Office of

Nuclear Reactor Regulation (NRR) from June 10 through 14, 1991, at the Carolina

Power & Light (CP&L) nuclear engineering offices in Raleigh, North Carolina.

This inspection reviewed the programs you developed in response to NRC Generic

)

Letter (GL) 89-10, "Safety-Related Motor-Operated Valve Testing and Surveil

lance."

Implementation of your corporate program was reviewed for the H. B.

Robinson Steam Electric Plant Unit No. 2 (H. B. Robinson 2).

The areas

examined during the inspection are discussed in the enclosed inspection report.

The results of this inspection were discussed with your staff during the exit

meeting on June 14, 1991.

The team found that portions of an acceptable MOV

program had been developed by CP&L, but identified many weaknesses, especially

with the H. B. Robinson plant implementing procedures. Overall the team

identified nine significant weaknesses. Of specific concern was CP&L's failure

to properly document and evaluate discrepant conditions found on two

safety-related MOVs. A similar concern was identified during a previous MOV

inspection at H. B. Robinson 2 (NRC Inspection Report 50-261/89-200), and the

continued failure to properly document and evaluate conditions that question

component or system operability is a problem that warrants increased management

attention. Other weaknesses identified by the team included inadequate proce

dures for controlling the performance and evaluation of diagnostic testing and

a setpoint document that did not contain minimum thrust requirements or limit

switch or torque switch settings for a large number of valves. These combined

weaknesses indicate a lack of overall management attention and priority to

MOV issues at the Robinson site. The team also noted that the CP&L stance on

valve mispositioning is not in conformance with the recommendations of GL 89-10.

Strengths related to the MOV program were identified in the areas of training,

the number of valves to be tested under differential pressure, industry group

9106010056 910725

PDR

ADOCK O50o0261

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PDR

July 25, 1991

Mr. Lynn W. Eury

- 2

involvement, and the electrical reviews related to thermal overload sizing,

motor performance in high ambient temperature conditions, and degraded voltage.

Please inform us in writing, within 60 days, when the actions to address the

open items contained in Appendix A to the enclosed inspection report will be

available for reinspection. In accordance with 10 CFR 2.790(a), a copy of this

letter and the enclosure will be placed in the NRC Public Document Room. Any

enforcement actions resulting from this inspection will be issued by Region II

under separate correspondence.

Should you have any questions concerning this inspection, please contact the

NRR Project Manager, Ronnie Lo, or the Inspection Team Leader, Jeffrey

Jacobson. Messrs. Lo and Jacobson can be reached at (301) 492-1457 and (301)

492-0996, respectively.

Sincerely,

ORIGINAL SIGNED BY STEVEN A. VARGA

Steven A. Varga, Director

Division of Reactor Projects I/II

Office of Nuclear Reactor Regulation

Enclosure:

Inspection Report 50-261

cc: See next page

Distribution: See page 4

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Mr. L. W. Eury

- 3 -

H. B. Robinson Steam Electric

Carolina Power & Light Company

Plant, Unit No. 2

cc:

Mr. H. Ray Starling

Mr. Dayne H. Brown, Director

Manager - Legal Department

Department of Environmental

Carolina Power & Light Company

Health and Natural Resources

P. 0. Box 1551

Division of Radiation Protection

Raleigh, North Carolina 27602

P. 0. Box 27687

Raleigh, North Carolina 27611-7687

Mr. H. A. Cole

Special Deputy Attorney General

Mr. Robert P. Gruber

State of North Carolina

Executive Director

P. 0. Box 629

Public Staff -

NCUC

Raleigh, North Carolina 27602

P. 0. Box 29520

Raleigh, North Carolina 27626-0520

U.S. Nuclear Regulatory Commission

Mr. C. R. Dietz

Resident Inspector's Office

Manager, Robinson Nuclear Project

H. B. Robinson Steam Electric Plant

Department

Route 5, Box 413

H. B. Robinson Steam Electric Plant

Hartsville, South Carolina 29550

P. 0. Box 790

Hartsville, South Carolina 29550

Regional Administrator, Region II

U.S. Nuclear Regulatory Commission

Mr. Heyward G. Shealy, Chief

101 Marietta Street

Bureau of Radiological Health

Suite 2900

South Carolina Department of Health

Atlanta, Georgia 30323

and Environmental Control

2600 Bull Street

Columbia, South Carolina 29201

Mr. R. Morgan

General Manager

H. B. Robinson Steam Electric Plant

P. 0. Box 790

Hartsville, South Carolina 29550

-4

Distribution:

Docket Files 50-261

RSIB R/F

DRIS R/F

TEMurley, NRR

FJMiraglia, NRR

WTRussell, NRR

JGPartlow, NRR

BKGrimes, NRR

EVImbro, NRR

JBJacobson, NRR

HWang, NRR

RLSpessard, AEOD

SAVarga, NRR

EGAdensam, DRP

RHLo, NRR

JWAnderson, NRR

LGarner, RII

Regional Administrators

Regional Division Directors

Inspection Team

LPDR

PDR

ACRS (3)

OGC (3)

11S Distribution