ML19209B449

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Responds to NRC 790810 Ltr Re Violations Noted in IE Insp Rept 50-334/79-09.Corrective Actions:Tested Supplementary Leak Collection & Release Sys Exhaust Air Filter Train
ML19209B449
Person / Time
Site: Beaver Valley
Issue date: 09/05/1979
From: Dunn C
DUQUESNE LIGHT CO.
To: Brunner E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19209B445 List:
References
NUDOCS 7910090747
Download: ML19209B449 (2)


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September 5, 1979 United States Nuclear Regulatory Commission Attention: Mr. Eldon J. Brunner, Chief Reactor Operations and Nuclear Support Branch Region I 631 Park Avenue King of Prussia, Pennsylvania 19406

Reference:

Beaver Valley Power Station, Unit No. 1 Docket No. 50-334 License No. DPR-66 IE Inspection Report No. 79-09

Dear Mr. Btrnner:

In response to your letter of August 10, 1979 and in accordance with 10 CFR 2.201, the attached reply addresses the Notice of Violation which was included as Appendix A of the referenced Inspection Report. The noted violation was the failure to perform a surveillance test for the Supplementary Leak Collection and Release (SCLRS) Filter Banks.

If you have any questions concerning this response, please contact my office.

Very truly yours, C. N. Dunn Vice President, Operations Attachment 1117 123 7Y7 7910090 W

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. DUQUESNE LIGHT COMPANY Beaver Valley Power Station Unit No. 1 REPLY TO NOTICE OF VIOLATION Inspection No. 79-09 Letter Dated August 10, 1979 Description Of Infraction (79-09-05)

Technical Specification 4.7.8.1.c state.=, in part, "Each Supplementary Leak Collection and Release System exhaust air filter train shall be demonstrated OPERABLE: ... c. At least cace per eighteen months by: .. 2. Verifying that the air flow distribution to each HEPA filter and charcoal absorber is within

+ 20% of the averaged flow per unit. Technical Specification 6.8.1.c states, in part, " Written procedures shall be established, implemented and maintained covering ... c. Surveillance and test activities of safety related equipment.

Contrary tc the above, the verific3tt... required by Technical Specification 4.7.8.1.c.2 F.s not been performed since August 1975 and precedures to perform that verificution have not been established or maintained as part of the licensee's surveillance test program.

Corrective Action The immediate corrective action to resolve the subject noncompliance was to test the SLCRS exhaust air filter train in accordance with the technical specification requirement. This was completed on May 15, 1979.

Action Taken To Prevent Recurrence The station is currently reviewing this technical specification requirement for a potential change to the eighteen (18) conth performance period. Basis for this change is the ANSI N510 requirement for Airflow Capacity, Distribution and Residence Time Tests, i.e. " acceptance tests are to be made after completion of initial construction and after any major system repair or modification". Until this change is initiated, approved and incorporated into the technical specifications, air flow distribution tests will continue to be performed in compliance with the eighteen (18) conth interval. This test will be added to the station Technical Specification Surveillance Procedure Scheduling List.

Date On Which Full Compliance Will Be Achieved Full compliance has been achieved at this time.

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