ML20247Q234

Forwards Application for Amend to License NPF-3,revising 18-month Insp Interval & Initial Sample Size for Functional Testing of Snubbers to Allow Up to Max of 30 Calendar Months

ML20247Q234
Person / Time
Site:	Davis Besse
Issue date:	05/26/1989
From:	Shelton D TOLEDO EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20247Q241	List: ML20247Q234 ML20247Q256
References
1646, ABS526, TAC-72816, NUDOCS 8906060367
Download: ML20247Q234 (2)

Text

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TOLEDO J . %sm EDISON h ' A Ce,terer Energy Cornpuny DONAU] C. SHELTON vce 9,me,%.,

[419)249?300 Docket Number 50-346 Y License Number NPF-3 Serial Number 1646 4 May 26, 1989 United States Nuclear Regulatory Commission Document Control Desk Vashington, D. C. 20555

Subject:

- License Amendment Application to Revise the 18-month Inspection Interval and Initial Sample Size for Functional Testing of Snubbers (TAC Number 72816)

Gentlement Enclosed is an application for an Amendment to the Davis-Besse Nuclear Power Station, Unit Number 1 Operating License Number NPF-3, Appendix A, Technical Specifications. Also enclosed are requerted changes to the Bases. As previously discussed with Mr. T. V. Vambach, NRC/NRR Davis-Besse Senior

- Project Manager, and as explained below, expeditious Nuclear Regulatory Commission (NRC) review and approval of this' License Amendment Application is required to avoid an unscheduled plant shutdown of Davis-Besse Nuclear Power Station, Unit Number 1.

This application requests that Technical Specification 3/4.7.7, Snubbers, and the associated Bases section, be revised to reflect the changes attached. The proposed changes involve revising the 18-month inspection interval for functional testing of snubbers to allow for an increased interval up to a maximum of 30 calendar months. The Technical Specification requirement that all snubbers be functionally tested at least once every 15 years vill be retained. This vill be accomplished by proportionally increasing the initial sample size for those inspection intervals which exceed 18 months. For those inspection intervals less than or equal to 18 months, a minimum of 10% of the snubber population vill be functionally tested. The proposed change also deletes the applicability of Technical Specification 4.0.2 from Technical Specification 4.7.7.2.

8906060367 890526 PDR ADOCK 05000346 f P PDC

' I THE TOLEDO EDISON COMPANY EDISON PLAZA 300 MADISON AVENUE TOLEDO, OHIO 43652

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. Docktt Numb:r 50-346

p. .. .- Lic': nee Numbar NPF-3 Serial Number 1646' Page 2 The next functional testing of the snubbers is due to be completed by September 15, 1989, as a result of the application of the requirement of-Technical Specification 4.0.2b. An unscheduled plant shutdown vould be necessary to perform the required snubber functional testing. Therefore, Toledo Edison requests expeditious NRC action to support issuance of the Technical Specification Amendment, along with the Bases changes, by July 31, 1989, for implementation within 45 days thereafter.

Very truly yours,

^'

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AVA/dlm Enclosures cc: P. M. Byron, DB-1 NRC Resident Inspector A. B. Davis, Regional Administrator, NRC Region III T. V. Vambach, DB-1 NRC Senior Project Manager State of Ohio

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