ML20202D336

Notice of Violation from Insp on 970929-1120.Violation Noted:Prior to 950420,licensee Failed to Assure That Test Instruments Used in RHR Heat Exchanger Performance Testing Were Adequate to Assure Test Requirements Were Satisfied

ML20202D336
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	02/05/1998
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20202D315	List: ML20202D307 ML20202D336 ML20202D343
References
50-271-97-10, NUDOCS 9802170049
Download: ML20202D336 (2)

Text

4 NOTICE OF VIOLATION Vermont Yankee Nuclear Power Corporation Docket No. 50-271 Vermont Yankee Nuclear Power Station License No. DPR 28 During an NRC inspection conducted on September 29 through November 20,1997, violations of NPC requirements were identified, in accordance with the " General Statement of Policy and Procedure for NRC Enforcement Actions," NUREG 1600, the violations are listed below:

A. 10 CFR 50, Appendix B, Criterion XI, Test Control, requires that all testing required to demonstrate that structures, systems, and components will perform satisfactorily in service is performed in accordance with written test procedures which incorporate the requirements and acceptance limits contained in applicable design documents. Test procedures shall include provisions for assuring that adequate test instrumentation is available and used. Test results shall be documented and evaluated to assure that test requirements have been satisfied.

Contrary to the above, prior to April 20,1995, the licensee f ailed to assure that the test instruments used in RHR heat exchanger performance testing were adequate to ass.ure the test requirements were satisfied. Specifically, (1) the flow instruments used during the testing were calibrated at the wrong flow condition; and (2) temperature instrument accuracy was such that small changes in temperature across the heat exchanger led to large uncertainties in the test results.

This is a Severity Level IV Violation (Supplement I).

B. 10 CFR 50.59(b)(1) requires that the licensee shall maintain records of changes in the f acility to the extent that these changes constitute changes in the f acility as described in the safety analysis report and these records must include a written safety evaluation which provides the basis for the determination that the change does not involve an unreviewed safety question.

Contrary to the above, on December 30,1994, the licensee changed the facility as described in the FSAR and failed to perform a written safety evaluation to determine that the change did not involve an unreviewed safety question (USO). Specifically, FSAR Section 10.7.6, Safety Evaluation, states that the RHR service water pump spaces are provided with space coolers (RRU 5,6,7 and 8) to prevent overheating of the safety-related pump motors during long periods of operation. The licensee changed the classification of space coolers RRU 5 and 6 frorn safety-related to nonsafety-related without a written safety evaluation to determine that no unreviewed safety question existed.

This is a Severity Level IV violation (Supplement I).

9802170049 980205 PDR 0 ADOCK 05000271 PDR .

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e Notice of Violation 2 C. 10 CFR 50, Appendix B, Criterion XVil, Quality Assurance Records, requires that sufficient records shall be maintained to furnish evidence of activities affecting quality. The records shallinclude records of inspections and tests.  :

Contrary to the above, prior to June 10,1997, the licensee failed to maintain sufficient records, in that technical specification surveillance test records for the main station battery service test performed on Septuber 14,1996,In accordance with Procedure OP 4215, " Main Battery Performance / Service Test," Rev. 6, did not contain thr. printout of test data showing individual cell voltege (ICV) and battery terminal voltago readings.

Th!s is a Severity LevelIV violation (Supplement 1).

Pursuant to the provisions of 10 CFR 2.201, Vermont Yankee Nuclear Power Corporation is hereby required to submit a written statement or explanation to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, D.C. 20555 with a copy to the Regional Administrator, Region I, and a copy to the NRC Resident Inspector at

he f acility that is the subject of this Notice, within 30 days of the date of the letter transmitting this Notice of Violation (Notice). This reply should be clearly marked as a

" Reply to a Notice of Violation" and shculd include: (1) the reason for the violation, or, if cormated, the basis for disputing the violation, (2) the corrective steps that have been tai n and the results achieved, (3) the corrective steps that will be taken to avoid further vlointions, and (4) the duce when full compliance ~(11 be achieved. Your response may reference or include previous docketed correspc ance, if the correspondence adequately addresses the requircd response, if an edequate reply is not received within the time specified in this Notico, an order or a Demand for Information may be issued as to why the license should not be modified, suspended, or revoked, or why such other action as may be proper should not be taken. Where good cause is shown, consideration will be given to extendic.g the response time.

Because your response will be placed in the NRC Public Document Room (PDR), to the extent possible, it should not include any personal privacy, proprietary, or safeguards informotion so that it can be placed in the PDR without reaction. However,if you find it necessary to include such information, you should clearly indicate the specific informatiois request for withholding the information trom the public.

Dated at King of Prussia, Pennsylvania this 5th day of February,1998.