ML20136B898

Notice of Violation from Insp on 961222-970201.Violation Noted:Corrective Actions Taken to Prevent Repetition of 1993 Unit Two Grid Synchronization Event Not Effective

ML20136B898
Person / Time
Site:	Comanche Peak
Issue date:	03/07/1997
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:
Shared Package
ML20136B896	List: ML20136B891 ML20136B898 ML20136B915
References
50-445-96-17, 50-446-96-17, NUDOCS 9703110187
Download: ML20136B898 (1)

Text

1 ENCLOSURE 1 i NOTICE OF VIOLATION j TU Electric Docket Nos.: 50-445 l Comanche Peak Steam Electric Station 50-446 License Nos.: NPF-87 NPF-89 l

During an NRC inspection conducted on December 22,1996, through February 1,1997, a violation of NRC requirements was identified. In accordance with the " General Statement of Policy and Procedure for NRC Enforcement Actions," NUREG-1600, the violation is listed below:

1 10 CFR Part 50, Appendix B, Criterion XVI, states, in part, that measures shall be established to assure that significant conditions adverse to quality are promptly identified and corrected and that the cause of the condition is determined and corrective action taken to preclude repetition.

Contrary to the above, the corrective actions taken to prevent repetition of a 1993, Unit 2 grid synchronization event were not effective. The resultant reactor coolant system transient resulted in plant operation below the minimum temperature for l criticality. A similar event, involving Unit 1, occurred November 16,1996.

This is a Severity Level IV violation (Supplement 1) (50-445(446)/9617-01).

Pursuant to the provisions of 10 CFR 2.201, TU Electric 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 IV,611 Ryan Plaza Drive, Suite 400, Arlington, Texas 76011, and a copy to the NRC Resident inspector at the facility 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 should include for each violation: (1) the reason for the 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 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, consideratior' 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. 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 th:: legal basis to support your request for withholding the information from the public.

Dated at Arlington, Texas this 7th day of March 1997 9703110187 970307 PDR ADOCK 05000445 G PDR