ML20133A491

Notice of Violation from Insp on 960921-1115.Violation Noted:On 960924,B Residual Heat Removal Pump Failed Due to Inherent Manufacturing Defects & Marginal Design Tolerance

ML20133A491
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	12/24/1996
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20133A483	List: ML20133A481 ML20133A491 ML20133A503
References
50-213-96-11, NUDOCS 9612310143
Download: ML20133A491 (2)

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ENCLOSURE 1 NOTICE OF VIOLATION

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Connecticut Yankee Atomic Power Company Docket No. 50-213 j

Haddam Neck Plant License No. DPR-61 During NRC inspections conducted from September 17 - September 27,1996, a violation of NRC requirements was identified. In accordance with the " General Statement of Policy

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and Procedure for NRC Enforcement Actions," (Enforcement Policy), NUREG 1600, the violation is listed below:

A.

10 CFR 50.72(b)(1)(ii) requires that the licensee notify the NRC Operations Center within one hour of the discovery of a condition in which the plant operated outside of its design basis.

Contrary to the above, on September 24,1996, the B residual heat removal (RHR) pump was determined to have failed on August 19 due to inherent manufacturing defects and marginal design tolerances, which rendered it incapable during past plant operations at power of performing the long term core recirculation cooling design function following postulated accidents. This condition, constituting past plant operation outside its design basis, was not reported to the NRC Operations Center per 10 CFR 50.72(b)(1)(ii).

This is a Severity Level IV violation (Supplement 1).

Pursuant to the provisions of 10 CFR 2.201, Connecticut Yankee Atomic Power Company is hereby required to submit a written statement or exp',anation to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, D.C. 20555, with a copy to the Regional Administrator, Region I, within 30 days of the date of the letter transmitting this Notice of Violation (Notice). This reply abould be clearly marked as a

" Reply to a Notice of Violation" and should include for eaah violation: (1) the reason for the violation, or, if contested, the basis for disputing the v'olation, (2) the corrective steps that have been taken and the results achieved, (3) the corrt ctive steps that will be 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 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 extending 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 information so that it can be placed in the PDR without redaction. If personal privacy or proprietary information is necessary to provide an acceptable response, then please provide a bracketed copy of your response that identifies the information that should be protected and a redacted copy of your response that deletes such information. If you request withholding of such material, you must specifically identify the portions of your response that you seek to have withheld and provide in detail the bases for your claim of withhold-ing (e.g., explain why the disclosure of information will create an unwarranted invasion of personal privacy or provide the information required by 10 CFR 2.790(b) to support a 9612310143 961224 PDR ADOCK 05000213 G

PDR

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request for withholding confidential commercial or financial information). If safeguards information is necessary to provide an acceptable response, please provide the level of protection described in 10 CFR 73.21.

Dated at King of Prussia, Pennsylvania this 24th day of December 1996.

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