ML20056C975

Notice of Violation from Insp on 930628-0702.Violation Noted:On 930613,oncoming Unit 2 Operations Shift Failed to Conduct Adequate Review of Current Plant Condition & Was Not Aware That CCW Isolated from Spent Fuel Pool HX

ML20056C975
Person / Time
Site:	South Texas
Issue date:	07/23/1993
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:
Shared Package
ML20056C974	List: ML20056C973 ML20056C975 ML20056C976
References
50-498-93-22, 50-499-93-22, NUDOCS 9307300174
Download: ML20056C975 (2)

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e APPENDIX A NOTICE OF VIOLATION j Houston Lighting & Power Company Dockets: 50-498

. South Texas Project, Units 1 and 2 50-499 Licenses: NPF-76 NPF-80 '

During an NRC inspection conducted June 28 through July 2, 1993, two--

violations of NRC requirements were identified. In accordance with the '

" General Statement of Policy and Procedure for NRC Enforcement Actions," ,

10 CFR Part 2, Appendix C, the violations are listed below:

i A. Violation Reauiring a Response Technical Specification 6.8.1.a states that written procedures shall be established, implemented, and maintained covering the activities referenced in Appendix A of Regulatory Guide (RG) 1.33, Revision 2, '

February 1978. Paragraph 1.g of RG 1.33, Appendix A, recommends that 1 administrative procedures addressing shift and relief turnover should be implemented. Paragraph 3.2.5 of Procedure OPOP01-ZQ-0022, " Plant j Operations Shift Routines," Revision 2, states,.in part, that each  :

individual relieving a watchstation SHALL be fully aware of plant' status prior to assuming the watch. In addition, Paragraph 5.3.1.11 of i Procedure OPOP01-ZQ-0022, " Plant Operations Shift Routines," Revision 2, ,

states, in part, that while conducting local operator rounds,  !

individuals should inspect all areas and equipment, ensuring that all .

noise and vibration levels are normal.

Contrary to the above, the following two examples of operators failing ,

to meet watchstanding requirements were identified:  !

1. On June 13, 1993, the oncoming Unit 2 operations shift failed to i conduct an adequate review of the current plant conditions-and ,

were not aware that component cooling water was isolated from the ,

spent fuel pool heat exchanger, which caused a loss of. spent fuel  !

pool cooling. This failure to be fully aware of plant status ,

prior to assuming the watch contributed to the loss of spent fuel  ;

pool cooling for approximately 13' hours. '

2. On June 13, 1993, the Unit 2 mechanical / electrical auxiliary . I building reactor plant operator failed to note, on a tour of the ,

fuel handling building,.that the noise ~ level in the area of.the-spent fuel pool pumps and heat exchangers was significantly 1 reduced following isolation of component cooling water to the in-service spent fuel pool heat exchanger. This failure to ensure that all equipment noise and vibration levels are normal contributed to the loss of spent fuel pool cooling for approximately 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br />.

4 These two examp'les constitute one Severity Level IV violation (Supplement 1) (499/9322-01).

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i B. Violation Not Requiring a Response Criterion XVI of 10 CFR Part 50, Appendix B, requires, in part, that measures shall be established to assure that conditions adverse to quality, such as failures, malfunctions, deficiencies, deviations, defective material, and nonconformances are promptly identified and corrected.

Contrary-to the above, the licensee failed to take corrective actions to ,

identify the cause of unexpected valve repositioning during the transfer .!

of safety-related Class IE Distribution Panel DP002. from its normal J power supply to its secondary power supply during the Unit.2 second l refueling outage. As a result of this failure,,on June 13, 1993, when j safety-related Class IE Distribution Panel DP001 was similarly i transferred from its normal power supply to its secondary power supply, '

component cooling water isolation valves to the spent fuel pool heat exchangers unexpectedly shut, which caused a loss of cooling to the spent fuel pool . ,

This is a Severity Level IV violation. (Supplement 1) (499/9322-02)

Pursuant to the provisions of 10 CFR 2.201, Houston Lighting & Power Company 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, and a copy .to  !

the NRC Resident Inspector at the facility that is the subject of this Notice, l within 30 days of the date of the letter transmitting this Notice of 4 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 j (4) the date when full compliance will be achieved. If an adequate reply is  ;

not received within the time specified in this Notice, an order or demand for l information may be issued as to why the license should not be modified, i 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 i the response time. -

i for Violation B, we note that significant actions.have been initiated as a

. result of previous enforcement actions to address weaknesses in your j corrective action program. Therefore, no response with respect to this i violation is required. 1 Dated at lingte Teyas,  :

thisd day of Af, 1993  !

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