ML20134G172

Notice of Violation from Insp on 960923-1219.Violation Noted:Plant Mod M11730A,rev 0,was Approved on 951130 for Modifying Unit 1 Rod Control Sys W/O Incorporating Applicable Design Inputs Re New Failure Modes

ML20134G172
Person / Time
Site:	Sequoyah
Issue date:	01/13/1997
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20134G156	List: ML20134G152 ML20134G172 ML20134G185
References
50-327-96-16, 50-328-96-16, NUDOCS 9702100306
Download: ML20134G172 (2)

Text

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NOTICE OF VIOLATIOri Tennessee Valley Authority Docket Nos. 50-327 and 50-328 Sequoyah Nuclear Plant License Nos. DPR-77 and DPR-79 During NRC inspections conducted on September 23-27,1996, November 4-22, 1996, and December 16-19,1996, a violation of NRC requirement was identified. In accordance with the " General Statement of Policy and Procedure for NRC Enforcement Actions," NUREG-1600, the violation is listed below:

10 CFR 50, Appendix B, Criterion lli requires that measures shall be established to ensure that design activities shall be prescribed and accomplished in accordance with procedures of a type sufficient to assure that applicable design inputs are correctly translated into specifications, drawings, procedures, or instructions. Applicable design inputs, such as design bases, regulatory requirements, codes and standards shall be identified, documented, and their selection reviewed and approved. The design input shall be specified on a timely basis and to a level of detail necessary to permit the design activity to be carried out in a correct manner and to provide a consistent basis for making design decisions, accomplishing design verification measures, and

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evaluating design changes.

l Contrary to the above plant modification DCN No. M11730A, Revision 0, was approved on November 30,1995, for modifying Unit 1 Rod Control System

, without incorporating applicable design inputs concerning new failure modes

! introduced by the hardware modification described in Westinghouse Topical l

t Report WCAP-13864, Section 3.5. This failure resulted in the plant modification package omitting requirements for development and implementation of new surveillance tests required to determine any component failure which is undetectable during normal operation.

This is a Severity Level IV Violation (Supplement 1)

Pursuant to the provisions of 10 CFR 2.201, Tennessee Valley Authority 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 ll, and a copy to the NRC Resident inspector, Sequoyah Nuclear Plant, 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 should include for each violation: (1) the reason for the

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Enclosure 1 9702100306 970113 PDR G ADOCK 05000327 PDR

Notice of Violation 2 1

i violation, or, if contested, the basis for disputing the violation, (2) the corrective steps ,

that have been taken and the results achieved, (3) the corrective steps that will be '

j taken to avoid further violations, and (4) the date when full compliance will be achieved. Your response may reference or include previous docketed correspondence, if the correspondence adequately addresses the required response.

if an adequate reply is not received within the time specified in this Notice, an order 1

or Demand for Information may be issued as to why the license should not be  !

l modified, suspended, or revoked, or why such other action as may be proper should j

not be taken. Where good cause is shown, consideration will be given to extending

the response time.

Because your response will be placed in the NRC Pubic Document Room (PDR), to j

' the extent possible, it should not include any personal privacy, proprietary, or safeguards information so that it can be placed in the PDR without redaction.

However, if you find it necessary to include such information, you should clearly indicate the specific information that you desire not to be placed in the PDR, and provide the legal basis to support your request for withholding the information from the public.

Dated at Atlanta, Georgia this 13th day of January 1997 1

Enclosure 1  !

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